Home / 89,918.56-124,085.88-49,629.96

Finding the Fourth Proportional to 89,918.56, 124,085.88 and 49,629.96

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Solution

The fourth proportional to 89,918.56, 124,085.88 and 49,629.96 is: 68,488.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,918.56 : 124,085.88 = 49,629.96 : x
  2. Step 2: Convert to fraction form
    89,918.56/124,085.88 = 49,629.96/x
  3. Step 3: Cross multiply
    89,918.56x = 124,085.88 × 49,629.96
  4. Step 4: Simplify right side
    89,918.56x = 6,158,377,260.96
  5. Step 5: Solve for x
    x = 6,158,377,260.96/89,918.56
  6. Step 6: Final answer
    x = 68,488.39

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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.