Home / 87,541.74-131,324.76-28,358.28

Finding the Fourth Proportional to 87,541.74, 131,324.76 and 28,358.28

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Solution

The fourth proportional to 87,541.74, 131,324.76 and 28,358.28 is: 42,541.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,541.74 : 131,324.76 = 28,358.28 : x
  2. Step 2: Convert to fraction form
    87,541.74/131,324.76 = 28,358.28/x
  3. Step 3: Cross multiply
    87,541.74x = 131,324.76 × 28,358.28
  4. Step 4: Simplify right side
    87,541.74x = 3,724,144,315.01
  5. Step 5: Solve for x
    x = 3,724,144,315.01/87,541.74
  6. Step 6: Final answer
    x = 42,541.36

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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.