Home / 75,163.06-103,726.70-42,897.04

Finding the Fourth Proportional to 75,163.06, 103,726.70 and 42,897.04

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Solution

The fourth proportional to 75,163.06, 103,726.70 and 42,897.04 is: 59,198.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,163.06 : 103,726.70 = 42,897.04 : x
  2. Step 2: Convert to fraction form
    75,163.06/103,726.70 = 42,897.04/x
  3. Step 3: Cross multiply
    75,163.06x = 103,726.70 × 42,897.04
  4. Step 4: Simplify right side
    75,163.06x = 4,449,568,398.97
  5. Step 5: Solve for x
    x = 4,449,568,398.97/75,163.06
  6. Step 6: Final answer
    x = 59,198.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.