Home / 78,023.04-117,052.92-25,432.44

Finding the Fourth Proportional to 78,023.04, 117,052.92 and 25,432.44

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Solution

The fourth proportional to 78,023.04, 117,052.92 and 25,432.44 is: 38,154.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,023.04 : 117,052.92 = 25,432.44 : x
  2. Step 2: Convert to fraction form
    78,023.04/117,052.92 = 25,432.44/x
  3. Step 3: Cross multiply
    78,023.04x = 117,052.92 × 25,432.44
  4. Step 4: Simplify right side
    78,023.04x = 2,976,941,364.72
  5. Step 5: Solve for x
    x = 2,976,941,364.72/78,023.04
  6. Step 6: Final answer
    x = 38,154.64

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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.