Home / 88,134.49-121,644.78-54,160.80

Finding the Fourth Proportional to 88,134.49, 121,644.78 and 54,160.80

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Solution

The fourth proportional to 88,134.49, 121,644.78 and 54,160.80 is: 74,753.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,134.49 : 121,644.78 = 54,160.80 : x
  2. Step 2: Convert to fraction form
    88,134.49/121,644.78 = 54,160.80/x
  3. Step 3: Cross multiply
    88,134.49x = 121,644.78 × 54,160.80
  4. Step 4: Simplify right side
    88,134.49x = 6,588,378,600.62
  5. Step 5: Solve for x
    x = 6,588,378,600.62/88,134.49
  6. Step 6: Final answer
    x = 74,753.69

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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.