Home / 78,591.74-108,553.97-57,047.05

Finding the Fourth Proportional to 78,591.74, 108,553.97 and 57,047.05

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Solution

The fourth proportional to 78,591.74, 108,553.97 and 57,047.05 is: 78,795.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,591.74 : 108,553.97 = 57,047.05 : x
  2. Step 2: Convert to fraction form
    78,591.74/108,553.97 = 57,047.05/x
  3. Step 3: Cross multiply
    78,591.74x = 108,553.97 × 57,047.05
  4. Step 4: Simplify right side
    78,591.74x = 6,192,683,754.29
  5. Step 5: Solve for x
    x = 6,192,683,754.29/78,591.74
  6. Step 6: Final answer
    x = 78,795.61

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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.