Home / 87,215.41-130,823.62-31,057.70

Finding the Fourth Proportional to 87,215.41, 130,823.62 and 31,057.70

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Solution

The fourth proportional to 87,215.41, 130,823.62 and 31,057.70 is: 46,586.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,215.41 : 130,823.62 = 31,057.70 : x
  2. Step 2: Convert to fraction form
    87,215.41/130,823.62 = 31,057.70/x
  3. Step 3: Cross multiply
    87,215.41x = 130,823.62 × 31,057.70
  4. Step 4: Simplify right side
    87,215.41x = 4,063,080,742.87
  5. Step 5: Solve for x
    x = 4,063,080,742.87/87,215.41
  6. Step 6: Final answer
    x = 46,586.73

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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.