Home / 83,841.27-115,650.36-51,581.40

Finding the Fourth Proportional to 83,841.27, 115,650.36 and 51,581.40

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Solution

The fourth proportional to 83,841.27, 115,650.36 and 51,581.40 is: 71,151.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,841.27 : 115,650.36 = 51,581.40 : x
  2. Step 2: Convert to fraction form
    83,841.27/115,650.36 = 51,581.40/x
  3. Step 3: Cross multiply
    83,841.27x = 115,650.36 × 51,581.40
  4. Step 4: Simplify right side
    83,841.27x = 5,965,407,479.30
  5. Step 5: Solve for x
    x = 5,965,407,479.30/83,841.27
  6. Step 6: Final answer
    x = 71,151.21

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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.