Home / 82,370.20-123,555.30-49,127.80

Finding the Fourth Proportional to 82,370.20, 123,555.30 and 49,127.80

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Solution

The fourth proportional to 82,370.20, 123,555.30 and 49,127.80 is: 73,691.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,370.20 : 123,555.30 = 49,127.80 : x
  2. Step 2: Convert to fraction form
    82,370.20/123,555.30 = 49,127.80/x
  3. Step 3: Cross multiply
    82,370.20x = 123,555.30 × 49,127.80
  4. Step 4: Simplify right side
    82,370.20x = 6,070,000,067.34
  5. Step 5: Solve for x
    x = 6,070,000,067.34/82,370.20
  6. Step 6: Final answer
    x = 73,691.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.