Home / 72,439.28-108,680.60-48,841.44

Finding the Fourth Proportional to 72,439.28, 108,680.60 and 48,841.44

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Solution

The fourth proportional to 72,439.28, 108,680.60 and 48,841.44 is: 73,276.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,439.28 : 108,680.60 = 48,841.44 : x
  2. Step 2: Convert to fraction form
    72,439.28/108,680.60 = 48,841.44/x
  3. Step 3: Cross multiply
    72,439.28x = 108,680.60 × 48,841.44
  4. Step 4: Simplify right side
    72,439.28x = 5,308,117,004.06
  5. Step 5: Solve for x
    x = 5,308,117,004.06/72,439.28
  6. Step 6: Final answer
    x = 73,276.78

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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.