Home / 74,318.76-111,463.56-21,715.97

Finding the Fourth Proportional to 74,318.76, 111,463.56 and 21,715.97

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Solution

The fourth proportional to 74,318.76, 111,463.56 and 21,715.97 is: 32,569.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,318.76 : 111,463.56 = 21,715.97 : x
  2. Step 2: Convert to fraction form
    74,318.76/111,463.56 = 21,715.97/x
  3. Step 3: Cross multiply
    74,318.76x = 111,463.56 × 21,715.97
  4. Step 4: Simplify right side
    74,318.76x = 2,420,538,767.74
  5. Step 5: Solve for x
    x = 2,420,538,767.74/74,318.76
  6. Step 6: Final answer
    x = 32,569.69

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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.