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Finding the Fourth Proportional to 58.68, 87.94 and 34.64

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Solution

The fourth proportional to 58.68, 87.94 and 34.64 is: 51.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    58.68 : 87.94 = 34.64 : x
  2. Step 2: Convert to fraction form
    58.68/87.94 = 34.64/x
  3. Step 3: Cross multiply
    58.68x = 87.94 × 34.64
  4. Step 4: Simplify right side
    58.68x = 3,046.24
  5. Step 5: Solve for x
    x = 3,046.24/58.68
  6. Step 6: Final answer
    x = 51.91

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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.