Home / 78,713.19-118,034.96-22,540.50

Finding the Fourth Proportional to 78,713.19, 118,034.96 and 22,540.50

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Solution

The fourth proportional to 78,713.19, 118,034.96 and 22,540.50 is: 33,800.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,713.19 : 118,034.96 = 22,540.50 : x
  2. Step 2: Convert to fraction form
    78,713.19/118,034.96 = 22,540.50/x
  3. Step 3: Cross multiply
    78,713.19x = 118,034.96 × 22,540.50
  4. Step 4: Simplify right side
    78,713.19x = 2,660,566,903.18
  5. Step 5: Solve for x
    x = 2,660,566,903.18/78,713.19
  6. Step 6: Final answer
    x = 33,800.78

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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.