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Finding the Fourth Proportional to 41.30, 61.43 and 37.45

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Solution

The fourth proportional to 41.30, 61.43 and 37.45 is: 55.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    41.30 : 61.43 = 37.45 : x
  2. Step 2: Convert to fraction form
    41.30/61.43 = 37.45/x
  3. Step 3: Cross multiply
    41.30x = 61.43 × 37.45
  4. Step 4: Simplify right side
    41.30x = 2,300.55
  5. Step 5: Solve for x
    x = 2,300.55/41.30
  6. Step 6: Final answer
    x = 55.70

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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.