Home / 83,500.20-115,099.38-63,276.12

Finding the Fourth Proportional to 83,500.20, 115,099.38 and 63,276.12

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Solution

The fourth proportional to 83,500.20, 115,099.38 and 63,276.12 is: 87,221.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,500.20 : 115,099.38 = 63,276.12 : x
  2. Step 2: Convert to fraction form
    83,500.20/115,099.38 = 63,276.12/x
  3. Step 3: Cross multiply
    83,500.20x = 115,099.38 × 63,276.12
  4. Step 4: Simplify right side
    83,500.20x = 7,283,042,180.81
  5. Step 5: Solve for x
    x = 7,283,042,180.81/83,500.20
  6. Step 6: Final answer
    x = 87,221.85

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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.