Home / 69,661.28-96,136.20-40,982.42

Finding the Fourth Proportional to 69,661.28, 96,136.20 and 40,982.42

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Solution

The fourth proportional to 69,661.28, 96,136.20 and 40,982.42 is: 56,557.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,661.28 : 96,136.20 = 40,982.42 : x
  2. Step 2: Convert to fraction form
    69,661.28/96,136.20 = 40,982.42/x
  3. Step 3: Cross multiply
    69,661.28x = 96,136.20 × 40,982.42
  4. Step 4: Simplify right side
    69,661.28x = 3,939,894,125.60
  5. Step 5: Solve for x
    x = 3,939,894,125.60/69,661.28
  6. Step 6: Final answer
    x = 56,557.88

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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.