Home / 71,899.11-99,223.65-40,067.73

Finding the Fourth Proportional to 71,899.11, 99,223.65 and 40,067.73

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Solution

The fourth proportional to 71,899.11, 99,223.65 and 40,067.73 is: 55,295.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,899.11 : 99,223.65 = 40,067.73 : x
  2. Step 2: Convert to fraction form
    71,899.11/99,223.65 = 40,067.73/x
  3. Step 3: Cross multiply
    71,899.11x = 99,223.65 × 40,067.73
  4. Step 4: Simplify right side
    71,899.11x = 3,975,666,417.81
  5. Step 5: Solve for x
    x = 3,975,666,417.81/71,899.11
  6. Step 6: Final answer
    x = 55,295.07

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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.