Home / 68,983.61-103,475.38-18,382.66

Finding the Fourth Proportional to 68,983.61, 103,475.38 and 18,382.66

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Solution

The fourth proportional to 68,983.61, 103,475.38 and 18,382.66 is: 27,573.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,983.61 : 103,475.38 = 18,382.66 : x
  2. Step 2: Convert to fraction form
    68,983.61/103,475.38 = 18,382.66/x
  3. Step 3: Cross multiply
    68,983.61x = 103,475.38 × 18,382.66
  4. Step 4: Simplify right side
    68,983.61x = 1,902,152,728.91
  5. Step 5: Solve for x
    x = 1,902,152,728.91/68,983.61
  6. Step 6: Final answer
    x = 27,573.98

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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.