Home / 54,521.68-81,782.34-15,078.52

Finding the Fourth Proportional to 54,521.68, 81,782.34 and 15,078.52

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Solution

The fourth proportional to 54,521.68, 81,782.34 and 15,078.52 is: 22,617.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,521.68 : 81,782.34 = 15,078.52 : x
  2. Step 2: Convert to fraction form
    54,521.68/81,782.34 = 15,078.52/x
  3. Step 3: Cross multiply
    54,521.68x = 81,782.34 × 15,078.52
  4. Step 4: Simplify right side
    54,521.68x = 1,233,156,649.34
  5. Step 5: Solve for x
    x = 1,233,156,649.34/54,521.68
  6. Step 6: Final answer
    x = 22,617.73

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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.