Home / 75,074.49-103,687.83-51,159.65

Finding the Fourth Proportional to 75,074.49, 103,687.83 and 51,159.65

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Solution

The fourth proportional to 75,074.49, 103,687.83 and 51,159.65 is: 70,658.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,074.49 : 103,687.83 = 51,159.65 : x
  2. Step 2: Convert to fraction form
    75,074.49/103,687.83 = 51,159.65/x
  3. Step 3: Cross multiply
    75,074.49x = 103,687.83 × 51,159.65
  4. Step 4: Simplify right side
    75,074.49x = 5,304,632,573.62
  5. Step 5: Solve for x
    x = 5,304,632,573.62/75,074.49
  6. Step 6: Final answer
    x = 70,658.26

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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.