Home / 48,540.46-72,780.52-20,446.04

Finding the Fourth Proportional to 48,540.46, 72,780.52 and 20,446.04

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Solution

The fourth proportional to 48,540.46, 72,780.52 and 20,446.04 is: 30,656.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,540.46 : 72,780.52 = 20,446.04 : x
  2. Step 2: Convert to fraction form
    48,540.46/72,780.52 = 20,446.04/x
  3. Step 3: Cross multiply
    48,540.46x = 72,780.52 × 20,446.04
  4. Step 4: Simplify right side
    48,540.46x = 1,488,073,423.14
  5. Step 5: Solve for x
    x = 1,488,073,423.14/48,540.46
  6. Step 6: Final answer
    x = 30,656.35

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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.