Home / 82,790.10-124,087.95-38,322.92

Finding the Fourth Proportional to 82,790.10, 124,087.95 and 38,322.92

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Solution

The fourth proportional to 82,790.10, 124,087.95 and 38,322.92 is: 57,439.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,790.10 : 124,087.95 = 38,322.92 : x
  2. Step 2: Convert to fraction form
    82,790.10/124,087.95 = 38,322.92/x
  3. Step 3: Cross multiply
    82,790.10x = 124,087.95 × 38,322.92
  4. Step 4: Simplify right side
    82,790.10x = 4,755,412,891.03
  5. Step 5: Solve for x
    x = 4,755,412,891.03/82,790.10
  6. Step 6: Final answer
    x = 57,439.39

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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.