Home / 71,569.35-107,357.72-18,261.79

Finding the Fourth Proportional to 71,569.35, 107,357.72 and 18,261.79

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Solution

The fourth proportional to 71,569.35, 107,357.72 and 18,261.79 is: 27,393.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,569.35 : 107,357.72 = 18,261.79 : x
  2. Step 2: Convert to fraction form
    71,569.35/107,357.72 = 18,261.79/x
  3. Step 3: Cross multiply
    71,569.35x = 107,357.72 × 18,261.79
  4. Step 4: Simplify right side
    71,569.35x = 1,960,544,653.88
  5. Step 5: Solve for x
    x = 1,960,544,653.88/71,569.35
  6. Step 6: Final answer
    x = 27,393.63

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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.