Home / 83,969.11-115,877.48-45,728.73

Finding the Fourth Proportional to 83,969.11, 115,877.48 and 45,728.73

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Solution

The fourth proportional to 83,969.11, 115,877.48 and 45,728.73 is: 63,105.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,969.11 : 115,877.48 = 45,728.73 : x
  2. Step 2: Convert to fraction form
    83,969.11/115,877.48 = 45,728.73/x
  3. Step 3: Cross multiply
    83,969.11x = 115,877.48 × 45,728.73
  4. Step 4: Simplify right side
    83,969.11x = 5,298,929,996.00
  5. Step 5: Solve for x
    x = 5,298,929,996.00/83,969.11
  6. Step 6: Final answer
    x = 63,105.71

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1.5x scale

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.