Home / 40,909.11-61,363.77-12,446.31

Finding the Fourth Proportional to 40,909.11, 61,363.77 and 12,446.31

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Solution

The fourth proportional to 40,909.11, 61,363.77 and 12,446.31 is: 18,669.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,909.11 : 61,363.77 = 12,446.31 : x
  2. Step 2: Convert to fraction form
    40,909.11/61,363.77 = 12,446.31/x
  3. Step 3: Cross multiply
    40,909.11x = 61,363.77 × 12,446.31
  4. Step 4: Simplify right side
    40,909.11x = 763,752,504.19
  5. Step 5: Solve for x
    x = 763,752,504.19/40,909.11
  6. Step 6: Final answer
    x = 18,669.50

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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.