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Finding the Fourth Proportional to 82.95, 124.32 and 37.25

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Solution

The fourth proportional to 82.95, 124.32 and 37.25 is: 55.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    82.95 : 124.32 = 37.25 : x
  2. Step 2: Convert to fraction form
    82.95/124.32 = 37.25/x
  3. Step 3: Cross multiply
    82.95x = 124.32 × 37.25
  4. Step 4: Simplify right side
    82.95x = 4,630.92
  5. Step 5: Solve for x
    x = 4,630.92/82.95
  6. Step 6: Final answer
    x = 55.83

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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.