Home / 83,937.20-115,853.10-52,130.12

Finding the Fourth Proportional to 83,937.20, 115,853.10 and 52,130.12

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Solution

The fourth proportional to 83,937.20, 115,853.10 and 52,130.12 is: 71,951.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,937.20 : 115,853.10 = 52,130.12 : x
  2. Step 2: Convert to fraction form
    83,937.20/115,853.10 = 52,130.12/x
  3. Step 3: Cross multiply
    83,937.20x = 115,853.10 × 52,130.12
  4. Step 4: Simplify right side
    83,937.20x = 6,039,436,005.37
  5. Step 5: Solve for x
    x = 6,039,436,005.37/83,937.20
  6. Step 6: Final answer
    x = 71,951.84

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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.