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Finding the Fourth Proportional to 123,551.43, 185,340.75 and 39,291.89

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Solution

The fourth proportional to 123,551.43, 185,340.75 and 39,291.89 is: 58,942.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,551.43 : 185,340.75 = 39,291.89 : x
  2. Step 2: Convert to fraction form
    123,551.43/185,340.75 = 39,291.89/x
  3. Step 3: Cross multiply
    123,551.43x = 185,340.75 × 39,291.89
  4. Step 4: Simplify right side
    123,551.43x = 7,282,387,434.81
  5. Step 5: Solve for x
    x = 7,282,387,434.81/123,551.43
  6. Step 6: Final answer
    x = 58,942.15

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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.