Home / 87,478.24-131,219.36-31,322.16

Finding the Fourth Proportional to 87,478.24, 131,219.36 and 31,322.16

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Solution

The fourth proportional to 87,478.24, 131,219.36 and 31,322.16 is: 46,983.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,478.24 : 131,219.36 = 31,322.16 : x
  2. Step 2: Convert to fraction form
    87,478.24/131,219.36 = 31,322.16/x
  3. Step 3: Cross multiply
    87,478.24x = 131,219.36 × 31,322.16
  4. Step 4: Simplify right side
    87,478.24x = 4,110,073,789.02
  5. Step 5: Solve for x
    x = 4,110,073,789.02/87,478.24
  6. Step 6: Final answer
    x = 46,983.96

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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.