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Finding the Fourth Proportional to 55,460.70, 83,197.17 and 20,400.30

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Solution

The fourth proportional to 55,460.70, 83,197.17 and 20,400.30 is: 30,602.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,460.70 : 83,197.17 = 20,400.30 : x
  2. Step 2: Convert to fraction form
    55,460.70/83,197.17 = 20,400.30/x
  3. Step 3: Cross multiply
    55,460.70x = 83,197.17 × 20,400.30
  4. Step 4: Simplify right side
    55,460.70x = 1,697,247,227.15
  5. Step 5: Solve for x
    x = 1,697,247,227.15/55,460.70
  6. Step 6: Final answer
    x = 30,602.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.