Home / 91,541.28-126,380.80-68,696

Finding the Fourth Proportional to 91,541.28, 126,380.80 and 68,696

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Solution

The fourth proportional to 91,541.28, 126,380.80 and 68,696 is: 94,840.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,541.28 : 126,380.80 = 68,696 : x
  2. Step 2: Convert to fraction form
    91,541.28/126,380.80 = 68,696/x
  3. Step 3: Cross multiply
    91,541.28x = 126,380.80 × 68,696
  4. Step 4: Simplify right side
    91,541.28x = 8,681,855,436.80
  5. Step 5: Solve for x
    x = 8,681,855,436.80/91,541.28
  6. Step 6: Final answer
    x = 94,840.88

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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.