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Finding the Fourth Proportional to 60.33, 83.10 and 57.39

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Solution

The fourth proportional to 60.33, 83.10 and 57.39 is: 79.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    60.33 : 83.10 = 57.39 : x
  2. Step 2: Convert to fraction form
    60.33/83.10 = 57.39/x
  3. Step 3: Cross multiply
    60.33x = 83.10 × 57.39
  4. Step 4: Simplify right side
    60.33x = 4,769.11
  5. Step 5: Solve for x
    x = 4,769.11/60.33
  6. Step 6: Final answer
    x = 79.05

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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.