Home / 87,937.21-131,904.61-21,377.14

Finding the Fourth Proportional to 87,937.21, 131,904.61 and 21,377.14

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Solution

The fourth proportional to 87,937.21, 131,904.61 and 21,377.14 is: 32,065.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,937.21 : 131,904.61 = 21,377.14 : x
  2. Step 2: Convert to fraction form
    87,937.21/131,904.61 = 21,377.14/x
  3. Step 3: Cross multiply
    87,937.21x = 131,904.61 × 21,377.14
  4. Step 4: Simplify right side
    87,937.21x = 2,819,743,314.62
  5. Step 5: Solve for x
    x = 2,819,743,314.62/87,937.21
  6. Step 6: Final answer
    x = 32,065.42

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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.