Home / 80,860.20-111,527.44-53,989.80

Finding the Fourth Proportional to 80,860.20, 111,527.44 and 53,989.80

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Solution

The fourth proportional to 80,860.20, 111,527.44 and 53,989.80 is: 74,466.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,860.20 : 111,527.44 = 53,989.80 : x
  2. Step 2: Convert to fraction form
    80,860.20/111,527.44 = 53,989.80/x
  3. Step 3: Cross multiply
    80,860.20x = 111,527.44 × 53,989.80
  4. Step 4: Simplify right side
    80,860.20x = 6,021,344,180.11
  5. Step 5: Solve for x
    x = 6,021,344,180.11/80,860.20
  6. Step 6: Final answer
    x = 74,466.11

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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.