Home / 87,648.70-131,473.05-82,810.30

Finding the Fourth Proportional to 87,648.70, 131,473.05 and 82,810.30

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Solution

The fourth proportional to 87,648.70, 131,473.05 and 82,810.30 is: 124,215.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,648.70 : 131,473.05 = 82,810.30 : x
  2. Step 2: Convert to fraction form
    87,648.70/131,473.05 = 82,810.30/x
  3. Step 3: Cross multiply
    87,648.70x = 131,473.05 × 82,810.30
  4. Step 4: Simplify right side
    87,648.70x = 10,887,322,712.42
  5. Step 5: Solve for x
    x = 10,887,322,712.42/87,648.70
  6. Step 6: Final answer
    x = 124,215.45

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1.5x scale

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.