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Finding the Fourth Proportional to 68.67, 102.51 and 58.59

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Solution

The fourth proportional to 68.67, 102.51 and 58.59 is: 87.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    68.67 : 102.51 = 58.59 : x
  2. Step 2: Convert to fraction form
    68.67/102.51 = 58.59/x
  3. Step 3: Cross multiply
    68.67x = 102.51 × 58.59
  4. Step 4: Simplify right side
    68.67x = 6,006.06
  5. Step 5: Solve for x
    x = 6,006.06/68.67
  6. Step 6: Final answer
    x = 87.46

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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.