Home / 45,818.67-68,718.77-12,542.09

Finding the Fourth Proportional to 45,818.67, 68,718.77 and 12,542.09

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Solution

The fourth proportional to 45,818.67, 68,718.77 and 12,542.09 is: 18,810.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,818.67 : 68,718.77 = 12,542.09 : x
  2. Step 2: Convert to fraction form
    45,818.67/68,718.77 = 12,542.09/x
  3. Step 3: Cross multiply
    45,818.67x = 68,718.77 × 12,542.09
  4. Step 4: Simplify right side
    45,818.67x = 861,876,591.73
  5. Step 5: Solve for x
    x = 861,876,591.73/45,818.67
  6. Step 6: Final answer
    x = 18,810.60

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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.