Home / 71,948.88-99,289.20-40,116.96

Finding the Fourth Proportional to 71,948.88, 99,289.20 and 40,116.96

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Solution

The fourth proportional to 71,948.88, 99,289.20 and 40,116.96 is: 55,361.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,948.88 : 99,289.20 = 40,116.96 : x
  2. Step 2: Convert to fraction form
    71,948.88/99,289.20 = 40,116.96/x
  3. Step 3: Cross multiply
    71,948.88x = 99,289.20 × 40,116.96
  4. Step 4: Simplify right side
    71,948.88x = 3,983,180,864.83
  5. Step 5: Solve for x
    x = 3,983,180,864.83/71,948.88
  6. Step 6: Final answer
    x = 55,361.26

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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.