Home / 78,517.23-117,713.88-39,052.82

Finding the Fourth Proportional to 78,517.23, 117,713.88 and 39,052.82

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Solution

The fourth proportional to 78,517.23, 117,713.88 and 39,052.82 is: 58,548.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,517.23 : 117,713.88 = 39,052.82 : x
  2. Step 2: Convert to fraction form
    78,517.23/117,713.88 = 39,052.82/x
  3. Step 3: Cross multiply
    78,517.23x = 117,713.88 × 39,052.82
  4. Step 4: Simplify right side
    78,517.23x = 4,597,058,378.57
  5. Step 5: Solve for x
    x = 4,597,058,378.57/78,517.23
  6. Step 6: Final answer
    x = 58,548.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.