Home / 56,757.12-85,129.20-15,200.88

Finding the Fourth Proportional to 56,757.12, 85,129.20 and 15,200.88

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Solution

The fourth proportional to 56,757.12, 85,129.20 and 15,200.88 is: 22,799.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,757.12 : 85,129.20 = 15,200.88 : x
  2. Step 2: Convert to fraction form
    56,757.12/85,129.20 = 15,200.88/x
  3. Step 3: Cross multiply
    56,757.12x = 85,129.20 × 15,200.88
  4. Step 4: Simplify right side
    56,757.12x = 1,294,038,753.70
  5. Step 5: Solve for x
    x = 1,294,038,753.70/56,757.12
  6. Step 6: Final answer
    x = 22,799.58

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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.