Home / 78,828.73-108,755.15-60,685.00

Finding the Fourth Proportional to 78,828.73, 108,755.15 and 60,685.00

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Solution

The fourth proportional to 78,828.73, 108,755.15 and 60,685.00 is: 83,723.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,828.73 : 108,755.15 = 60,685.00 : x
  2. Step 2: Convert to fraction form
    78,828.73/108,755.15 = 60,685.00/x
  3. Step 3: Cross multiply
    78,828.73x = 108,755.15 × 60,685.00
  4. Step 4: Simplify right side
    78,828.73x = 6,599,805,702.44
  5. Step 5: Solve for x
    x = 6,599,805,702.44/78,828.73
  6. Step 6: Final answer
    x = 83,723.36

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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.