Home / 88,189.76-121,721.13-54,227.48

Finding the Fourth Proportional to 88,189.76, 121,721.13 and 54,227.48

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Solution

The fourth proportional to 88,189.76, 121,721.13 and 54,227.48 is: 74,845.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,189.76 : 121,721.13 = 54,227.48 : x
  2. Step 2: Convert to fraction form
    88,189.76/121,721.13 = 54,227.48/x
  3. Step 3: Cross multiply
    88,189.76x = 121,721.13 × 54,227.48
  4. Step 4: Simplify right side
    88,189.76x = 6,600,629,534.05
  5. Step 5: Solve for x
    x = 6,600,629,534.05/88,189.76
  6. Step 6: Final answer
    x = 74,845.76

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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.