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Finding the Fourth Proportional to 88,489.56, 132,422.40 and 55,225.20

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Solution

The fourth proportional to 88,489.56, 132,422.40 and 55,225.20 is: 82,643.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,489.56 : 132,422.40 = 55,225.20 : x
  2. Step 2: Convert to fraction form
    88,489.56/132,422.40 = 55,225.20/x
  3. Step 3: Cross multiply
    88,489.56x = 132,422.40 × 55,225.20
  4. Step 4: Simplify right side
    88,489.56x = 7,313,053,524.48
  5. Step 5: Solve for x
    x = 7,313,053,524.48/88,489.56
  6. Step 6: Final answer
    x = 82,643.12

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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.