Home / 75,456.16-104,148.20-43,643.52

Finding the Fourth Proportional to 75,456.16, 104,148.20 and 43,643.52

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Solution

The fourth proportional to 75,456.16, 104,148.20 and 43,643.52 is: 60,238.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,456.16 : 104,148.20 = 43,643.52 : x
  2. Step 2: Convert to fraction form
    75,456.16/104,148.20 = 43,643.52/x
  3. Step 3: Cross multiply
    75,456.16x = 104,148.20 × 43,643.52
  4. Step 4: Simplify right side
    75,456.16x = 4,545,394,049.66
  5. Step 5: Solve for x
    x = 4,545,394,049.66/75,456.16
  6. Step 6: Final answer
    x = 60,238.87

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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.