Home / 87,446.06-131,173.19-28,286.34

Finding the Fourth Proportional to 87,446.06, 131,173.19 and 28,286.34

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Solution

The fourth proportional to 87,446.06, 131,173.19 and 28,286.34 is: 42,430.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,446.06 : 131,173.19 = 28,286.34 : x
  2. Step 2: Convert to fraction form
    87,446.06/131,173.19 = 28,286.34/x
  3. Step 3: Cross multiply
    87,446.06x = 131,173.19 × 28,286.34
  4. Step 4: Simplify right side
    87,446.06x = 3,710,409,309.79
  5. Step 5: Solve for x
    x = 3,710,409,309.79/87,446.06
  6. Step 6: Final answer
    x = 42,430.84

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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.