Home / 57,960.20-87,029.40-31,716.20

Finding the Fourth Proportional to 57,960.20, 87,029.40 and 31,716.20

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Solution

The fourth proportional to 57,960.20, 87,029.40 and 31,716.20 is: 47,623.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,960.20 : 87,029.40 = 31,716.20 : x
  2. Step 2: Convert to fraction form
    57,960.20/87,029.40 = 31,716.20/x
  3. Step 3: Cross multiply
    57,960.20x = 87,029.40 × 31,716.20
  4. Step 4: Simplify right side
    57,960.20x = 2,760,241,856.28
  5. Step 5: Solve for x
    x = 2,760,241,856.28/57,960.20
  6. Step 6: Final answer
    x = 47,623.06

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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.