Home / 81,296.28-112,194.36-45,489.62

Finding the Fourth Proportional to 81,296.28, 112,194.36 and 45,489.62

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Solution

The fourth proportional to 81,296.28, 112,194.36 and 45,489.62 is: 62,778.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,296.28 : 112,194.36 = 45,489.62 : x
  2. Step 2: Convert to fraction form
    81,296.28/112,194.36 = 45,489.62/x
  3. Step 3: Cross multiply
    81,296.28x = 112,194.36 × 45,489.62
  4. Step 4: Simplify right side
    81,296.28x = 5,103,678,241.57
  5. Step 5: Solve for x
    x = 5,103,678,241.57/81,296.28
  6. Step 6: Final answer
    x = 62,778.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.