Home / 82,400.52-123,600.84-20,070.48

Finding the Fourth Proportional to 82,400.52, 123,600.84 and 20,070.48

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Solution

The fourth proportional to 82,400.52, 123,600.84 and 20,070.48 is: 30,105.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,400.52 : 123,600.84 = 20,070.48 : x
  2. Step 2: Convert to fraction form
    82,400.52/123,600.84 = 20,070.48/x
  3. Step 3: Cross multiply
    82,400.52x = 123,600.84 × 20,070.48
  4. Step 4: Simplify right side
    82,400.52x = 2,480,728,187.20
  5. Step 5: Solve for x
    x = 2,480,728,187.20/82,400.52
  6. Step 6: Final answer
    x = 30,105.73

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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.