Home / 81,287.36-121,773.30-59,901.27

Finding the Fourth Proportional to 81,287.36, 121,773.30 and 59,901.27

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Solution

The fourth proportional to 81,287.36, 121,773.30 and 59,901.27 is: 89,735.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,287.36 : 121,773.30 = 59,901.27 : x
  2. Step 2: Convert to fraction form
    81,287.36/121,773.30 = 59,901.27/x
  3. Step 3: Cross multiply
    81,287.36x = 121,773.30 × 59,901.27
  4. Step 4: Simplify right side
    81,287.36x = 7,294,375,494.26
  5. Step 5: Solve for x
    x = 7,294,375,494.26/81,287.36
  6. Step 6: Final answer
    x = 89,735.66

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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.