Home / 87,481.73-131,243.42-28,317.40

Finding the Fourth Proportional to 87,481.73, 131,243.42 and 28,317.40

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Solution

The fourth proportional to 87,481.73, 131,243.42 and 28,317.40 is: 42,482.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,481.73 : 131,243.42 = 28,317.40 : x
  2. Step 2: Convert to fraction form
    87,481.73/131,243.42 = 28,317.40/x
  3. Step 3: Cross multiply
    87,481.73x = 131,243.42 × 28,317.40
  4. Step 4: Simplify right side
    87,481.73x = 3,716,472,164.19
  5. Step 5: Solve for x
    x = 3,716,472,164.19/87,481.73
  6. Step 6: Final answer
    x = 42,482.84

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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.