Home / 87,188.66-120,327.30-48,950.72

Finding the Fourth Proportional to 87,188.66, 120,327.30 and 48,950.72

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Solution

The fourth proportional to 87,188.66, 120,327.30 and 48,950.72 is: 67,555.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,188.66 : 120,327.30 = 48,950.72 : x
  2. Step 2: Convert to fraction form
    87,188.66/120,327.30 = 48,950.72/x
  3. Step 3: Cross multiply
    87,188.66x = 120,327.30 × 48,950.72
  4. Step 4: Simplify right side
    87,188.66x = 5,890,107,970.66
  5. Step 5: Solve for x
    x = 5,890,107,970.66/87,188.66
  6. Step 6: Final answer
    x = 67,555.90

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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.