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Finding the Fourth Proportional to 91,807.77, 137,718.33 and 38,446.08

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Solution

The fourth proportional to 91,807.77, 137,718.33 and 38,446.08 is: 57,671.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,807.77 : 137,718.33 = 38,446.08 : x
  2. Step 2: Convert to fraction form
    91,807.77/137,718.33 = 38,446.08/x
  3. Step 3: Cross multiply
    91,807.77x = 137,718.33 × 38,446.08
  4. Step 4: Simplify right side
    91,807.77x = 5,294,729,932.65
  5. Step 5: Solve for x
    x = 5,294,729,932.65/91,807.77
  6. Step 6: Final answer
    x = 57,671.92

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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.