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Finding the Fourth Proportional to 56,753.28, 85,129.71 and 17,310.30

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Solution

The fourth proportional to 56,753.28, 85,129.71 and 17,310.30 is: 25,965.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,753.28 : 85,129.71 = 17,310.30 : x
  2. Step 2: Convert to fraction form
    56,753.28/85,129.71 = 17,310.30/x
  3. Step 3: Cross multiply
    56,753.28x = 85,129.71 × 17,310.30
  4. Step 4: Simplify right side
    56,753.28x = 1,473,620,819.01
  5. Step 5: Solve for x
    x = 1,473,620,819.01/56,753.28
  6. Step 6: Final answer
    x = 25,965.39

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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.