Home / 42,720.34-58,894.76-36,814.90

Finding the Fourth Proportional to 42,720.34, 58,894.76 and 36,814.90

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Solution

The fourth proportional to 42,720.34, 58,894.76 and 36,814.90 is: 50,753.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,720.34 : 58,894.76 = 36,814.90 : x
  2. Step 2: Convert to fraction form
    42,720.34/58,894.76 = 36,814.90/x
  3. Step 3: Cross multiply
    42,720.34x = 58,894.76 × 36,814.90
  4. Step 4: Simplify right side
    42,720.34x = 2,168,204,699.92
  5. Step 5: Solve for x
    x = 2,168,204,699.92/42,720.34
  6. Step 6: Final answer
    x = 50,753.45

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.