Home / 89,989.25-124,186.19-49,702.10

Finding the Fourth Proportional to 89,989.25, 124,186.19 and 49,702.10

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Solution

The fourth proportional to 89,989.25, 124,186.19 and 49,702.10 is: 68,589.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,989.25 : 124,186.19 = 49,702.10 : x
  2. Step 2: Convert to fraction form
    89,989.25/124,186.19 = 49,702.10/x
  3. Step 3: Cross multiply
    89,989.25x = 124,186.19 × 49,702.10
  4. Step 4: Simplify right side
    89,989.25x = 6,172,313,564.56
  5. Step 5: Solve for x
    x = 6,172,313,564.56/89,989.25
  6. Step 6: Final answer
    x = 68,589.46

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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.