Home / 78,896.38-108,877.17-43,087.18

Finding the Fourth Proportional to 78,896.38, 108,877.17 and 43,087.18

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Solution

The fourth proportional to 78,896.38, 108,877.17 and 43,087.18 is: 59,460.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,896.38 : 108,877.17 = 43,087.18 : x
  2. Step 2: Convert to fraction form
    78,896.38/108,877.17 = 43,087.18/x
  3. Step 3: Cross multiply
    78,896.38x = 108,877.17 × 43,087.18
  4. Step 4: Simplify right side
    78,896.38x = 4,691,210,221.68
  5. Step 5: Solve for x
    x = 4,691,210,221.68/78,896.38
  6. Step 6: Final answer
    x = 59,460.40

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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.