Home / 71,710.20-107,565.30-40,606.20

Finding the Fourth Proportional to 71,710.20, 107,565.30 and 40,606.20

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Solution

The fourth proportional to 71,710.20, 107,565.30 and 40,606.20 is: 60,909.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,710.20 : 107,565.30 = 40,606.20 : x
  2. Step 2: Convert to fraction form
    71,710.20/107,565.30 = 40,606.20/x
  3. Step 3: Cross multiply
    71,710.20x = 107,565.30 × 40,606.20
  4. Step 4: Simplify right side
    71,710.20x = 4,367,818,084.86
  5. Step 5: Solve for x
    x = 4,367,818,084.86/71,710.20
  6. Step 6: Final answer
    x = 60,909.30

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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.