Home / 89,907.33-124,077.78-51,679.11

Finding the Fourth Proportional to 89,907.33, 124,077.78 and 51,679.11

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Solution

The fourth proportional to 89,907.33, 124,077.78 and 51,679.11 is: 71,320.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,907.33 : 124,077.78 = 51,679.11 : x
  2. Step 2: Convert to fraction form
    89,907.33/124,077.78 = 51,679.11/x
  3. Step 3: Cross multiply
    89,907.33x = 124,077.78 × 51,679.11
  4. Step 4: Simplify right side
    89,907.33x = 6,412,229,241.18
  5. Step 5: Solve for x
    x = 6,412,229,241.18/89,907.33
  6. Step 6: Final answer
    x = 71,320.43

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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.