Home / 71,873.18-99,185.09-40,043.19

Finding the Fourth Proportional to 71,873.18, 99,185.09 and 40,043.19

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Solution

The fourth proportional to 71,873.18, 99,185.09 and 40,043.19 is: 55,259.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,873.18 : 99,185.09 = 40,043.19 : x
  2. Step 2: Convert to fraction form
    71,873.18/99,185.09 = 40,043.19/x
  3. Step 3: Cross multiply
    71,873.18x = 99,185.09 × 40,043.19
  4. Step 4: Simplify right side
    71,873.18x = 3,971,687,203.82
  5. Step 5: Solve for x
    x = 3,971,687,203.82/71,873.18
  6. Step 6: Final answer
    x = 55,259.66

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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.