Home / 78,936.48-108,934.44-43,126.20

Finding the Fourth Proportional to 78,936.48, 108,934.44 and 43,126.20

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Solution

The fourth proportional to 78,936.48, 108,934.44 and 43,126.20 is: 59,515.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,936.48 : 108,934.44 = 43,126.20 : x
  2. Step 2: Convert to fraction form
    78,936.48/108,934.44 = 43,126.20/x
  3. Step 3: Cross multiply
    78,936.48x = 108,934.44 × 43,126.20
  4. Step 4: Simplify right side
    78,936.48x = 4,697,928,446.33
  5. Step 5: Solve for x
    x = 4,697,928,446.33/78,936.48
  6. Step 6: Final answer
    x = 59,515.30

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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.