Home / 78,044.96-107,702.05-42,234.97

Finding the Fourth Proportional to 78,044.96, 107,702.05 and 42,234.97

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Solution

The fourth proportional to 78,044.96, 107,702.05 and 42,234.97 is: 58,284.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,044.96 : 107,702.05 = 42,234.97 : x
  2. Step 2: Convert to fraction form
    78,044.96/107,702.05 = 42,234.97/x
  3. Step 3: Cross multiply
    78,044.96x = 107,702.05 × 42,234.97
  4. Step 4: Simplify right side
    78,044.96x = 4,548,792,850.69
  5. Step 5: Solve for x
    x = 4,548,792,850.69/78,044.96
  6. Step 6: Final answer
    x = 58,284.26

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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.