Home / 74,381.38-111,572.98-21,791.93

Finding the Fourth Proportional to 74,381.38, 111,572.98 and 21,791.93

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Solution

The fourth proportional to 74,381.38, 111,572.98 and 21,791.93 is: 32,688.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,381.38 : 111,572.98 = 21,791.93 : x
  2. Step 2: Convert to fraction form
    74,381.38/111,572.98 = 21,791.93/x
  3. Step 3: Cross multiply
    74,381.38x = 111,572.98 × 21,791.93
  4. Step 4: Simplify right side
    74,381.38x = 2,431,389,957.71
  5. Step 5: Solve for x
    x = 2,431,389,957.71/74,381.38
  6. Step 6: Final answer
    x = 32,688.15

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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.