Home / 82,516.18-123,754.40-38,100.28

Finding the Fourth Proportional to 82,516.18, 123,754.40 and 38,100.28

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Solution

The fourth proportional to 82,516.18, 123,754.40 and 38,100.28 is: 57,141.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,516.18 : 123,754.40 = 38,100.28 : x
  2. Step 2: Convert to fraction form
    82,516.18/123,754.40 = 38,100.28/x
  3. Step 3: Cross multiply
    82,516.18x = 123,754.40 × 38,100.28
  4. Step 4: Simplify right side
    82,516.18x = 4,715,077,291.23
  5. Step 5: Solve for x
    x = 4,715,077,291.23/82,516.18
  6. Step 6: Final answer
    x = 57,141.25

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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.