Home / 83,712.64-115,545.36-51,863.44

Finding the Fourth Proportional to 83,712.64, 115,545.36 and 51,863.44

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Solution

The fourth proportional to 83,712.64, 115,545.36 and 51,863.44 is: 71,585.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,712.64 : 115,545.36 = 51,863.44 : x
  2. Step 2: Convert to fraction form
    83,712.64/115,545.36 = 51,863.44/x
  3. Step 3: Cross multiply
    83,712.64x = 115,545.36 × 51,863.44
  4. Step 4: Simplify right side
    83,712.64x = 5,992,579,845.64
  5. Step 5: Solve for x
    x = 5,992,579,845.64/83,712.64
  6. Step 6: Final answer
    x = 71,585.13

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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.