Home / 87,679.30-131,454.15-48,280.90

Finding the Fourth Proportional to 87,679.30, 131,454.15 and 48,280.90

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Solution

The fourth proportional to 87,679.30, 131,454.15 and 48,280.90 is: 72,385.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,679.30 : 131,454.15 = 48,280.90 : x
  2. Step 2: Convert to fraction form
    87,679.30/131,454.15 = 48,280.90/x
  3. Step 3: Cross multiply
    87,679.30x = 131,454.15 × 48,280.90
  4. Step 4: Simplify right side
    87,679.30x = 6,346,724,670.74
  5. Step 5: Solve for x
    x = 6,346,724,670.74/87,679.30
  6. Step 6: Final answer
    x = 72,385.67

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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.