Home / 69,888.12-104,839.56-40,305.30

Finding the Fourth Proportional to 69,888.12, 104,839.56 and 40,305.30

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Solution

The fourth proportional to 69,888.12, 104,839.56 and 40,305.30 is: 60,462.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,888.12 : 104,839.56 = 40,305.30 : x
  2. Step 2: Convert to fraction form
    69,888.12/104,839.56 = 40,305.30/x
  3. Step 3: Cross multiply
    69,888.12x = 104,839.56 × 40,305.30
  4. Step 4: Simplify right side
    69,888.12x = 4,225,589,917.67
  5. Step 5: Solve for x
    x = 4,225,589,917.67/69,888.12
  6. Step 6: Final answer
    x = 60,462.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.