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Finding the Fourth Proportional to 88,286.40, 132,429.60 and 40,901.40

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Solution

The fourth proportional to 88,286.40, 132,429.60 and 40,901.40 is: 61,352.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,286.40 : 132,429.60 = 40,901.40 : x
  2. Step 2: Convert to fraction form
    88,286.40/132,429.60 = 40,901.40/x
  3. Step 3: Cross multiply
    88,286.40x = 132,429.60 × 40,901.40
  4. Step 4: Simplify right side
    88,286.40x = 5,416,556,041.44
  5. Step 5: Solve for x
    x = 5,416,556,041.44/88,286.40
  6. Step 6: Final answer
    x = 61,352.10

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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.