Home / 82,428.31-123,631.26-23,268.75

Finding the Fourth Proportional to 82,428.31, 123,631.26 and 23,268.75

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Solution

The fourth proportional to 82,428.31, 123,631.26 and 23,268.75 is: 34,899.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,428.31 : 123,631.26 = 23,268.75 : x
  2. Step 2: Convert to fraction form
    82,428.31/123,631.26 = 23,268.75/x
  3. Step 3: Cross multiply
    82,428.31x = 123,631.26 × 23,268.75
  4. Step 4: Simplify right side
    82,428.31x = 2,876,744,881.13
  5. Step 5: Solve for x
    x = 2,876,744,881.13/82,428.31
  6. Step 6: Final answer
    x = 34,899.96

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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.