Home / 87,684.24-131,569.56-40,940.40

Finding the Fourth Proportional to 87,684.24, 131,569.56 and 40,940.40

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Solution

The fourth proportional to 87,684.24, 131,569.56 and 40,940.40 is: 61,430.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,684.24 : 131,569.56 = 40,940.40 : x
  2. Step 2: Convert to fraction form
    87,684.24/131,569.56 = 40,940.40/x
  3. Step 3: Cross multiply
    87,684.24x = 131,569.56 × 40,940.40
  4. Step 4: Simplify right side
    87,684.24x = 5,386,510,414.22
  5. Step 5: Solve for x
    x = 5,386,510,414.22/87,684.24
  6. Step 6: Final answer
    x = 61,430.77

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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.