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Finding the Fourth Proportional to 53,999.92, 80,999.20 and 18,460.88

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Solution

The fourth proportional to 53,999.92, 80,999.20 and 18,460.88 is: 27,691.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,999.92 : 80,999.20 = 18,460.88 : x
  2. Step 2: Convert to fraction form
    53,999.92/80,999.20 = 18,460.88/x
  3. Step 3: Cross multiply
    53,999.92x = 80,999.20 × 18,460.88
  4. Step 4: Simplify right side
    53,999.92x = 1,495,316,511.30
  5. Step 5: Solve for x
    x = 1,495,316,511.30/53,999.92
  6. Step 6: Final answer
    x = 27,691.09

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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.