Home / 71,844.64-99,141.84-40,012.96

Finding the Fourth Proportional to 71,844.64, 99,141.84 and 40,012.96

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Solution

The fourth proportional to 71,844.64, 99,141.84 and 40,012.96 is: 55,215.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,844.64 : 99,141.84 = 40,012.96 : x
  2. Step 2: Convert to fraction form
    71,844.64/99,141.84 = 40,012.96/x
  3. Step 3: Cross multiply
    71,844.64x = 99,141.84 × 40,012.96
  4. Step 4: Simplify right side
    71,844.64x = 3,966,958,478.25
  5. Step 5: Solve for x
    x = 3,966,958,478.25/71,844.64
  6. Step 6: Final answer
    x = 55,215.79

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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.