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Finding the Fourth Proportional to 37.79, 56.37 and 32.12

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Solution

The fourth proportional to 37.79, 56.37 and 32.12 is: 47.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    37.79 : 56.37 = 32.12 : x
  2. Step 2: Convert to fraction form
    37.79/56.37 = 32.12/x
  3. Step 3: Cross multiply
    37.79x = 56.37 × 32.12
  4. Step 4: Simplify right side
    37.79x = 1,810.60
  5. Step 5: Solve for x
    x = 1,810.60/37.79
  6. Step 6: Final answer
    x = 47.91

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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.