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Finding the Fourth Proportional to 91,673.28, 137,549.13 and 38,377.71

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Solution

The fourth proportional to 91,673.28, 137,549.13 and 38,377.71 is: 57,582.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,673.28 : 137,549.13 = 38,377.71 : x
  2. Step 2: Convert to fraction form
    91,673.28/137,549.13 = 38,377.71/x
  3. Step 3: Cross multiply
    91,673.28x = 137,549.13 × 38,377.71
  4. Step 4: Simplify right side
    91,673.28x = 5,278,820,621.89
  5. Step 5: Solve for x
    x = 5,278,820,621.89/91,673.28
  6. Step 6: Final answer
    x = 57,582.98

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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.