Home / 83,930.96-115,841.28-48,145.20

Finding the Fourth Proportional to 83,930.96, 115,841.28 and 48,145.20

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Solution

The fourth proportional to 83,930.96, 115,841.28 and 48,145.20 is: 66,449.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,930.96 : 115,841.28 = 48,145.20 : x
  2. Step 2: Convert to fraction form
    83,930.96/115,841.28 = 48,145.20/x
  3. Step 3: Cross multiply
    83,930.96x = 115,841.28 × 48,145.20
  4. Step 4: Simplify right side
    83,930.96x = 5,577,201,593.86
  5. Step 5: Solve for x
    x = 5,577,201,593.86/83,930.96
  6. Step 6: Final answer
    x = 66,449.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.