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Finding the Fourth Proportional to 94.89, 142.47 and 58.98

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Solution

The fourth proportional to 94.89, 142.47 and 58.98 is: 88.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    94.89 : 142.47 = 58.98 : x
  2. Step 2: Convert to fraction form
    94.89/142.47 = 58.98/x
  3. Step 3: Cross multiply
    94.89x = 142.47 × 58.98
  4. Step 4: Simplify right side
    94.89x = 8,402.88
  5. Step 5: Solve for x
    x = 8,402.88/94.89
  6. Step 6: Final answer
    x = 88.55

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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.