Home / 89,687.57-134,439.05-39,791.16

Finding the Fourth Proportional to 89,687.57, 134,439.05 and 39,791.16

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Solution

The fourth proportional to 89,687.57, 134,439.05 and 39,791.16 is: 59,645.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,687.57 : 134,439.05 = 39,791.16 : x
  2. Step 2: Convert to fraction form
    89,687.57/134,439.05 = 39,791.16/x
  3. Step 3: Cross multiply
    89,687.57x = 134,439.05 × 39,791.16
  4. Step 4: Simplify right side
    89,687.57x = 5,349,485,848.28
  5. Step 5: Solve for x
    x = 5,349,485,848.28/89,687.57
  6. Step 6: Final answer
    x = 59,645.79

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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.