Home / 71,843.08-99,134.26-40,007.66

Finding the Fourth Proportional to 71,843.08, 99,134.26 and 40,007.66

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Solution

The fourth proportional to 71,843.08, 99,134.26 and 40,007.66 is: 55,205.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,843.08 : 99,134.26 = 40,007.66 : x
  2. Step 2: Convert to fraction form
    71,843.08/99,134.26 = 40,007.66/x
  3. Step 3: Cross multiply
    71,843.08x = 99,134.26 × 40,007.66
  4. Step 4: Simplify right side
    71,843.08x = 3,966,129,768.43
  5. Step 5: Solve for x
    x = 3,966,129,768.43/71,843.08
  6. Step 6: Final answer
    x = 55,205.45

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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.