Home / 82,275.12-123,387.12-29,677.77

Finding the Fourth Proportional to 82,275.12, 123,387.12 and 29,677.77

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Solution

The fourth proportional to 82,275.12, 123,387.12 and 29,677.77 is: 44,507.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,275.12 : 123,387.12 = 29,677.77 : x
  2. Step 2: Convert to fraction form
    82,275.12/123,387.12 = 29,677.77/x
  3. Step 3: Cross multiply
    82,275.12x = 123,387.12 × 29,677.77
  4. Step 4: Simplify right side
    82,275.12x = 3,661,854,568.32
  5. Step 5: Solve for x
    x = 3,661,854,568.32/82,275.12
  6. Step 6: Final answer
    x = 44,507.44

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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.