Home / 88,689.92-132,928.08-38,748.64

Finding the Fourth Proportional to 88,689.92, 132,928.08 and 38,748.64

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Solution

The fourth proportional to 88,689.92, 132,928.08 and 38,748.64 is: 58,076.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,689.92 : 132,928.08 = 38,748.64 : x
  2. Step 2: Convert to fraction form
    88,689.92/132,928.08 = 38,748.64/x
  3. Step 3: Cross multiply
    88,689.92x = 132,928.08 × 38,748.64
  4. Step 4: Simplify right side
    88,689.92x = 5,150,782,317.81
  5. Step 5: Solve for x
    x = 5,150,782,317.81/88,689.92
  6. Step 6: Final answer
    x = 58,076.30

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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.