Home / 82,259.52-123,438.40-75,567.28

Finding the Fourth Proportional to 82,259.52, 123,438.40 and 75,567.28

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Solution

The fourth proportional to 82,259.52, 123,438.40 and 75,567.28 is: 113,396.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,259.52 : 123,438.40 = 75,567.28 : x
  2. Step 2: Convert to fraction form
    82,259.52/123,438.40 = 75,567.28/x
  3. Step 3: Cross multiply
    82,259.52x = 123,438.40 × 75,567.28
  4. Step 4: Simplify right side
    82,259.52x = 9,327,904,135.55
  5. Step 5: Solve for x
    x = 9,327,904,135.55/82,259.52
  6. Step 6: Final answer
    x = 113,396.04

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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.