Home / 71,842.11-99,145.18-40,011

Finding the Fourth Proportional to 71,842.11, 99,145.18 and 40,011

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Solution

The fourth proportional to 71,842.11, 99,145.18 and 40,011 is: 55,216.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,842.11 : 99,145.18 = 40,011 : x
  2. Step 2: Convert to fraction form
    71,842.11/99,145.18 = 40,011/x
  3. Step 3: Cross multiply
    71,842.11x = 99,145.18 × 40,011
  4. Step 4: Simplify right side
    71,842.11x = 3,966,897,796.98
  5. Step 5: Solve for x
    x = 3,966,897,796.98/71,842.11
  6. Step 6: Final answer
    x = 55,216.89

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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.