Home / 71,860.43-99,166.14-40,028.65

Finding the Fourth Proportional to 71,860.43, 99,166.14 and 40,028.65

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Solution

The fourth proportional to 71,860.43, 99,166.14 and 40,028.65 is: 55,238.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,860.43 : 99,166.14 = 40,028.65 : x
  2. Step 2: Convert to fraction form
    71,860.43/99,166.14 = 40,028.65/x
  3. Step 3: Cross multiply
    71,860.43x = 99,166.14 × 40,028.65
  4. Step 4: Simplify right side
    71,860.43x = 3,969,486,462.00
  5. Step 5: Solve for x
    x = 3,969,486,462.00/71,860.43
  6. Step 6: Final answer
    x = 55,238.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.