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Finding the Fourth Proportional to 79,881.60, 119,822.40 and 33,110.40

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Solution

The fourth proportional to 79,881.60, 119,822.40 and 33,110.40 is: 49,665.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,881.60 : 119,822.40 = 33,110.40 : x
  2. Step 2: Convert to fraction form
    79,881.60/119,822.40 = 33,110.40/x
  3. Step 3: Cross multiply
    79,881.60x = 119,822.40 × 33,110.40
  4. Step 4: Simplify right side
    79,881.60x = 3,967,367,592.96
  5. Step 5: Solve for x
    x = 3,967,367,592.96/79,881.60
  6. Step 6: Final answer
    x = 49,665.60

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.