Home / 68,418.13-102,558.54-28,382.66

Finding the Fourth Proportional to 68,418.13, 102,558.54 and 28,382.66

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Solution

The fourth proportional to 68,418.13, 102,558.54 and 28,382.66 is: 42,545.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,418.13 : 102,558.54 = 28,382.66 : x
  2. Step 2: Convert to fraction form
    68,418.13/102,558.54 = 28,382.66/x
  3. Step 3: Cross multiply
    68,418.13x = 102,558.54 × 28,382.66
  4. Step 4: Simplify right side
    68,418.13x = 2,910,884,029.00
  5. Step 5: Solve for x
    x = 2,910,884,029.00/68,418.13
  6. Step 6: Final answer
    x = 42,545.51

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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.