Home / 45,517.80-68,280.77-12,237.13

Finding the Fourth Proportional to 45,517.80, 68,280.77 and 12,237.13

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Solution

The fourth proportional to 45,517.80, 68,280.77 and 12,237.13 is: 18,356.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,517.80 : 68,280.77 = 12,237.13 : x
  2. Step 2: Convert to fraction form
    45,517.80/68,280.77 = 12,237.13/x
  3. Step 3: Cross multiply
    45,517.80x = 68,280.77 × 12,237.13
  4. Step 4: Simplify right side
    45,517.80x = 835,560,390.85
  5. Step 5: Solve for x
    x = 835,560,390.85/45,517.80
  6. Step 6: Final answer
    x = 18,356.78

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1.5x scale

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.