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Finding the Fourth Proportional to 58.60, 80.87 and 32.72

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Solution

The fourth proportional to 58.60, 80.87 and 32.72 is: 45.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    58.60 : 80.87 = 32.72 : x
  2. Step 2: Convert to fraction form
    58.60/80.87 = 32.72/x
  3. Step 3: Cross multiply
    58.60x = 80.87 × 32.72
  4. Step 4: Simplify right side
    58.60x = 2,646.10
  5. Step 5: Solve for x
    x = 2,646.10/58.60
  6. Step 6: Final answer
    x = 45.16

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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.