Home / 69,777.12-96,294.96-39,974.88

Finding the Fourth Proportional to 69,777.12, 96,294.96 and 39,974.88

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Solution

The fourth proportional to 69,777.12, 96,294.96 and 39,974.88 is: 55,166.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,777.12 : 96,294.96 = 39,974.88 : x
  2. Step 2: Convert to fraction form
    69,777.12/96,294.96 = 39,974.88/x
  3. Step 3: Cross multiply
    69,777.12x = 96,294.96 × 39,974.88
  4. Step 4: Simplify right side
    69,777.12x = 3,849,379,470.60
  5. Step 5: Solve for x
    x = 3,849,379,470.60/69,777.12
  6. Step 6: Final answer
    x = 55,166.79

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1.5x scale

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.