Home / 87,670.30-131,440.65-48,271.90

Finding the Fourth Proportional to 87,670.30, 131,440.65 and 48,271.90

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Solution

The fourth proportional to 87,670.30, 131,440.65 and 48,271.90 is: 72,372.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,670.30 : 131,440.65 = 48,271.90 : x
  2. Step 2: Convert to fraction form
    87,670.30/131,440.65 = 48,271.90/x
  3. Step 3: Cross multiply
    87,670.30x = 131,440.65 × 48,271.90
  4. Step 4: Simplify right side
    87,670.30x = 6,344,889,912.74
  5. Step 5: Solve for x
    x = 6,344,889,912.74/87,670.30
  6. Step 6: Final answer
    x = 72,372.17

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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.