Home / 83,142.80-124,577.40-48,021.20

Finding the Fourth Proportional to 83,142.80, 124,577.40 and 48,021.20

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Solution

The fourth proportional to 83,142.80, 124,577.40 and 48,021.20 is: 71,952.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,142.80 : 124,577.40 = 48,021.20 : x
  2. Step 2: Convert to fraction form
    83,142.80/124,577.40 = 48,021.20/x
  3. Step 3: Cross multiply
    83,142.80x = 124,577.40 × 48,021.20
  4. Step 4: Simplify right side
    83,142.80x = 5,982,356,240.88
  5. Step 5: Solve for x
    x = 5,982,356,240.88/83,142.80
  6. Step 6: Final answer
    x = 71,952.79

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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.