Home / 99,712.44-137,603.60-54,391.41

Finding the Fourth Proportional to 99,712.44, 137,603.60 and 54,391.41

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Solution

The fourth proportional to 99,712.44, 137,603.60 and 54,391.41 is: 75,060.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,712.44 : 137,603.60 = 54,391.41 : x
  2. Step 2: Convert to fraction form
    99,712.44/137,603.60 = 54,391.41/x
  3. Step 3: Cross multiply
    99,712.44x = 137,603.60 × 54,391.41
  4. Step 4: Simplify right side
    99,712.44x = 7,484,453,553.12
  5. Step 5: Solve for x
    x = 7,484,453,553.12/99,712.44
  6. Step 6: Final answer
    x = 75,060.38

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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.