Home / 80,938.62-121,461.84-28,348.02

Finding the Fourth Proportional to 80,938.62, 121,461.84 and 28,348.02

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Solution

The fourth proportional to 80,938.62, 121,461.84 and 28,348.02 is: 42,540.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,938.62 : 121,461.84 = 28,348.02 : x
  2. Step 2: Convert to fraction form
    80,938.62/121,461.84 = 28,348.02/x
  3. Step 3: Cross multiply
    80,938.62x = 121,461.84 × 28,348.02
  4. Step 4: Simplify right side
    80,938.62x = 3,443,202,669.56
  5. Step 5: Solve for x
    x = 3,443,202,669.56/80,938.62
  6. Step 6: Final answer
    x = 42,540.91

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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.