Home / 63,679.20-87,877.72-39,819.84

Finding the Fourth Proportional to 63,679.20, 87,877.72 and 39,819.84

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Solution

The fourth proportional to 63,679.20, 87,877.72 and 39,819.84 is: 54,951.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,679.20 : 87,877.72 = 39,819.84 : x
  2. Step 2: Convert to fraction form
    63,679.20/87,877.72 = 39,819.84/x
  3. Step 3: Cross multiply
    63,679.20x = 87,877.72 × 39,819.84
  4. Step 4: Simplify right side
    63,679.20x = 3,499,276,749.96
  5. Step 5: Solve for x
    x = 3,499,276,749.96/63,679.20
  6. Step 6: Final answer
    x = 54,951.64

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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.