Home / 54,822.72-82,272-21,542.56

Finding the Fourth Proportional to 54,822.72, 82,272 and 21,542.56

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Solution

The fourth proportional to 54,822.72, 82,272 and 21,542.56 is: 32,328.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,822.72 : 82,272 = 21,542.56 : x
  2. Step 2: Convert to fraction form
    54,822.72/82,272 = 21,542.56/x
  3. Step 3: Cross multiply
    54,822.72x = 82,272 × 21,542.56
  4. Step 4: Simplify right side
    54,822.72x = 1,772,349,496.32
  5. Step 5: Solve for x
    x = 1,772,349,496.32/54,822.72
  6. Step 6: Final answer
    x = 32,328.74

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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.