Home / 71,489.20-107,234.58-21,569.74

Finding the Fourth Proportional to 71,489.20, 107,234.58 and 21,569.74

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Solution

The fourth proportional to 71,489.20, 107,234.58 and 21,569.74 is: 32,354.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,489.20 : 107,234.58 = 21,569.74 : x
  2. Step 2: Convert to fraction form
    71,489.20/107,234.58 = 21,569.74/x
  3. Step 3: Cross multiply
    71,489.20x = 107,234.58 × 21,569.74
  4. Step 4: Simplify right side
    71,489.20x = 2,313,021,901.76
  5. Step 5: Solve for x
    x = 2,313,021,901.76/71,489.20
  6. Step 6: Final answer
    x = 32,354.84

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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.