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Finding the Fourth Proportional to 56.52, 84.33 and 48.42

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Solution

The fourth proportional to 56.52, 84.33 and 48.42 is: 72.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    56.52 : 84.33 = 48.42 : x
  2. Step 2: Convert to fraction form
    56.52/84.33 = 48.42/x
  3. Step 3: Cross multiply
    56.52x = 84.33 × 48.42
  4. Step 4: Simplify right side
    56.52x = 4,083.26
  5. Step 5: Solve for x
    x = 4,083.26/56.52
  6. Step 6: Final answer
    x = 72.24

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.