Home / 87,916.62-121,324.80-47,630.58

Finding the Fourth Proportional to 87,916.62, 121,324.80 and 47,630.58

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Solution

The fourth proportional to 87,916.62, 121,324.80 and 47,630.58 is: 65,730.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,916.62 : 121,324.80 = 47,630.58 : x
  2. Step 2: Convert to fraction form
    87,916.62/121,324.80 = 47,630.58/x
  3. Step 3: Cross multiply
    87,916.62x = 121,324.80 × 47,630.58
  4. Step 4: Simplify right side
    87,916.62x = 5,778,770,592.38
  5. Step 5: Solve for x
    x = 5,778,770,592.38/87,916.62
  6. Step 6: Final answer
    x = 65,730.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.