Home / 72,217.20-108,367.20-38,937.12

Finding the Fourth Proportional to 72,217.20, 108,367.20 and 38,937.12

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Solution

The fourth proportional to 72,217.20, 108,367.20 and 38,937.12 is: 58,428.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,217.20 : 108,367.20 = 38,937.12 : x
  2. Step 2: Convert to fraction form
    72,217.20/108,367.20 = 38,937.12/x
  3. Step 3: Cross multiply
    72,217.20x = 108,367.20 × 38,937.12
  4. Step 4: Simplify right side
    72,217.20x = 4,219,506,670.46
  5. Step 5: Solve for x
    x = 4,219,506,670.46/72,217.20
  6. Step 6: Final answer
    x = 58,428.00

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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.