Home / 99,735.39-137,640.11-57,296.66

Finding the Fourth Proportional to 99,735.39, 137,640.11 and 57,296.66

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Solution

The fourth proportional to 99,735.39, 137,640.11 and 57,296.66 is: 79,072.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,735.39 : 137,640.11 = 57,296.66 : x
  2. Step 2: Convert to fraction form
    99,735.39/137,640.11 = 57,296.66/x
  3. Step 3: Cross multiply
    99,735.39x = 137,640.11 × 57,296.66
  4. Step 4: Simplify right side
    99,735.39x = 7,886,317,610.35
  5. Step 5: Solve for x
    x = 7,886,317,610.35/99,735.39
  6. Step 6: Final answer
    x = 79,072.41

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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.