Home / 83,881.28-115,756.96-48,070.56

Finding the Fourth Proportional to 83,881.28, 115,756.96 and 48,070.56

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Solution

The fourth proportional to 83,881.28, 115,756.96 and 48,070.56 is: 66,337.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,881.28 : 115,756.96 = 48,070.56 : x
  2. Step 2: Convert to fraction form
    83,881.28/115,756.96 = 48,070.56/x
  3. Step 3: Cross multiply
    83,881.28x = 115,756.96 × 48,070.56
  4. Step 4: Simplify right side
    83,881.28x = 5,564,501,891.10
  5. Step 5: Solve for x
    x = 5,564,501,891.10/83,881.28
  6. Step 6: Final answer
    x = 66,337.83

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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.