Home / 78,896.11-108,877.50-43,087.18

Finding the Fourth Proportional to 78,896.11, 108,877.50 and 43,087.18

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Solution

The fourth proportional to 78,896.11, 108,877.50 and 43,087.18 is: 59,460.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,896.11 : 108,877.50 = 43,087.18 : x
  2. Step 2: Convert to fraction form
    78,896.11/108,877.50 = 43,087.18/x
  3. Step 3: Cross multiply
    78,896.11x = 108,877.50 × 43,087.18
  4. Step 4: Simplify right side
    78,896.11x = 4,691,224,275.97
  5. Step 5: Solve for x
    x = 4,691,224,275.97/78,896.11
  6. Step 6: Final answer
    x = 59,460.78

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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.