Home / 71,932.35-99,266.77-40,100.57

Finding the Fourth Proportional to 71,932.35, 99,266.77 and 40,100.57

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Solution

The fourth proportional to 71,932.35, 99,266.77 and 40,100.57 is: 55,338.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,932.35 : 99,266.77 = 40,100.57 : x
  2. Step 2: Convert to fraction form
    71,932.35/99,266.77 = 40,100.57/x
  3. Step 3: Cross multiply
    71,932.35x = 99,266.77 × 40,100.57
  4. Step 4: Simplify right side
    71,932.35x = 3,980,654,059.06
  5. Step 5: Solve for x
    x = 3,980,654,059.06/71,932.35
  6. Step 6: Final answer
    x = 55,338.86

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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.