Home / 87,819.20-131,702.88-48,368.96

Finding the Fourth Proportional to 87,819.20, 131,702.88 and 48,368.96

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Solution

The fourth proportional to 87,819.20, 131,702.88 and 48,368.96 is: 72,539.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,819.20 : 131,702.88 = 48,368.96 : x
  2. Step 2: Convert to fraction form
    87,819.20/131,702.88 = 48,368.96/x
  3. Step 3: Cross multiply
    87,819.20x = 131,702.88 × 48,368.96
  4. Step 4: Simplify right side
    87,819.20x = 6,370,331,334.60
  5. Step 5: Solve for x
    x = 6,370,331,334.60/87,819.20
  6. Step 6: Final answer
    x = 72,539.16

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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.