Home / 87,934.58-131,900.68-21,374.51

Finding the Fourth Proportional to 87,934.58, 131,900.68 and 21,374.51

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Solution

The fourth proportional to 87,934.58, 131,900.68 and 21,374.51 is: 32,061.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,934.58 : 131,900.68 = 21,374.51 : x
  2. Step 2: Convert to fraction form
    87,934.58/131,900.68 = 21,374.51/x
  3. Step 3: Cross multiply
    87,934.58x = 131,900.68 × 21,374.51
  4. Step 4: Simplify right side
    87,934.58x = 2,819,312,296.79
  5. Step 5: Solve for x
    x = 2,819,312,296.79/87,934.58
  6. Step 6: Final answer
    x = 32,061.48

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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.