Home / 99,805.41-137,759.27-57,377.61

Finding the Fourth Proportional to 99,805.41, 137,759.27 and 57,377.61

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Solution

The fourth proportional to 99,805.41, 137,759.27 and 57,377.61 is: 79,197.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,805.41 : 137,759.27 = 57,377.61 : x
  2. Step 2: Convert to fraction form
    99,805.41/137,759.27 = 57,377.61/x
  3. Step 3: Cross multiply
    99,805.41x = 137,759.27 × 57,377.61
  4. Step 4: Simplify right side
    99,805.41x = 7,904,297,381.06
  5. Step 5: Solve for x
    x = 7,904,297,381.06/99,805.41
  6. Step 6: Final answer
    x = 79,197.08

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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.