Home / 48,292.80-72,439.20-40,929.90

Finding the Fourth Proportional to 48,292.80, 72,439.20 and 40,929.90

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Solution

The fourth proportional to 48,292.80, 72,439.20 and 40,929.90 is: 61,394.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,292.80 : 72,439.20 = 40,929.90 : x
  2. Step 2: Convert to fraction form
    48,292.80/72,439.20 = 40,929.90/x
  3. Step 3: Cross multiply
    48,292.80x = 72,439.20 × 40,929.90
  4. Step 4: Simplify right side
    48,292.80x = 2,964,929,212.08
  5. Step 5: Solve for x
    x = 2,964,929,212.08/48,292.80
  6. Step 6: Final answer
    x = 61,394.85

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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.