Home / 87,950.51-131,925.76-21,390.68

Finding the Fourth Proportional to 87,950.51, 131,925.76 and 21,390.68

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Solution

The fourth proportional to 87,950.51, 131,925.76 and 21,390.68 is: 32,086.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,950.51 : 131,925.76 = 21,390.68 : x
  2. Step 2: Convert to fraction form
    87,950.51/131,925.76 = 21,390.68/x
  3. Step 3: Cross multiply
    87,950.51x = 131,925.76 × 21,390.68
  4. Step 4: Simplify right side
    87,950.51x = 2,821,982,112.58
  5. Step 5: Solve for x
    x = 2,821,982,112.58/87,950.51
  6. Step 6: Final answer
    x = 32,086.02

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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.