Home / 83,981.55-115,890.17-52,149.77

Finding the Fourth Proportional to 83,981.55, 115,890.17 and 52,149.77

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Solution

The fourth proportional to 83,981.55, 115,890.17 and 52,149.77 is: 71,963.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,981.55 : 115,890.17 = 52,149.77 : x
  2. Step 2: Convert to fraction form
    83,981.55/115,890.17 = 52,149.77/x
  3. Step 3: Cross multiply
    83,981.55x = 115,890.17 × 52,149.77
  4. Step 4: Simplify right side
    83,981.55x = 6,043,644,870.56
  5. Step 5: Solve for x
    x = 6,043,644,870.56/83,981.55
  6. Step 6: Final answer
    x = 71,963.96

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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.