Home / 99,761.37-137,694.33-57,344.55

Finding the Fourth Proportional to 99,761.37, 137,694.33 and 57,344.55

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Solution

The fourth proportional to 99,761.37, 137,694.33 and 57,344.55 is: 79,149.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,761.37 : 137,694.33 = 57,344.55 : x
  2. Step 2: Convert to fraction form
    99,761.37/137,694.33 = 57,344.55/x
  3. Step 3: Cross multiply
    99,761.37x = 137,694.33 × 57,344.55
  4. Step 4: Simplify right side
    99,761.37x = 7,896,019,391.40
  5. Step 5: Solve for x
    x = 7,896,019,391.40/99,761.37
  6. Step 6: Final answer
    x = 79,149.07

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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.