Home / 82,259.48-123,438.36-75,567.20

Finding the Fourth Proportional to 82,259.48, 123,438.36 and 75,567.20

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Solution

The fourth proportional to 82,259.48, 123,438.36 and 75,567.20 is: 113,395.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,259.48 : 123,438.36 = 75,567.20 : x
  2. Step 2: Convert to fraction form
    82,259.48/123,438.36 = 75,567.20/x
  3. Step 3: Cross multiply
    82,259.48x = 123,438.36 × 75,567.20
  4. Step 4: Simplify right side
    82,259.48x = 9,327,891,237.79
  5. Step 5: Solve for x
    x = 9,327,891,237.79/82,259.48
  6. Step 6: Final answer
    x = 113,395.94

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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.