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Finding the Fourth Proportional to 83.08, 124.51 and 37.40

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Solution

The fourth proportional to 83.08, 124.51 and 37.40 is: 56.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    83.08 : 124.51 = 37.40 : x
  2. Step 2: Convert to fraction form
    83.08/124.51 = 37.40/x
  3. Step 3: Cross multiply
    83.08x = 124.51 × 37.40
  4. Step 4: Simplify right side
    83.08x = 4,656.67
  5. Step 5: Solve for x
    x = 4,656.67/83.08
  6. Step 6: Final answer
    x = 56.05

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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.