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Finding the Fourth Proportional to 72,253.92, 108,381.03 and 38,989.65

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Solution

The fourth proportional to 72,253.92, 108,381.03 and 38,989.65 is: 58,484.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,253.92 : 108,381.03 = 38,989.65 : x
  2. Step 2: Convert to fraction form
    72,253.92/108,381.03 = 38,989.65/x
  3. Step 3: Cross multiply
    72,253.92x = 108,381.03 × 38,989.65
  4. Step 4: Simplify right side
    72,253.92x = 4,225,738,426.34
  5. Step 5: Solve for x
    x = 4,225,738,426.34/72,253.92
  6. Step 6: Final answer
    x = 58,484.56

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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.