Home / 48,446.11-72,669.20-13,385.80

Finding the Fourth Proportional to 48,446.11, 72,669.20 and 13,385.80

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Solution

The fourth proportional to 48,446.11, 72,669.20 and 13,385.80 is: 20,078.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,446.11 : 72,669.20 = 13,385.80 : x
  2. Step 2: Convert to fraction form
    48,446.11/72,669.20 = 13,385.80/x
  3. Step 3: Cross multiply
    48,446.11x = 72,669.20 × 13,385.80
  4. Step 4: Simplify right side
    48,446.11x = 972,735,128.76
  5. Step 5: Solve for x
    x = 972,735,128.76/48,446.11
  6. Step 6: Final answer
    x = 20,078.71

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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.