Home / 78,023.22-117,034.74-25,432.62

Finding the Fourth Proportional to 78,023.22, 117,034.74 and 25,432.62

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Solution

The fourth proportional to 78,023.22, 117,034.74 and 25,432.62 is: 38,148.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,023.22 : 117,034.74 = 25,432.62 : x
  2. Step 2: Convert to fraction form
    78,023.22/117,034.74 = 25,432.62/x
  3. Step 3: Cross multiply
    78,023.22x = 117,034.74 × 25,432.62
  4. Step 4: Simplify right side
    78,023.22x = 2,976,500,069.22
  5. Step 5: Solve for x
    x = 2,976,500,069.22/78,023.22
  6. Step 6: Final answer
    x = 38,148.90

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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.