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Finding the Fourth Proportional to 58.88, 88.17 and 47.39

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Solution

The fourth proportional to 58.88, 88.17 and 47.39 is: 70.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    58.88 : 88.17 = 47.39 : x
  2. Step 2: Convert to fraction form
    58.88/88.17 = 47.39/x
  3. Step 3: Cross multiply
    58.88x = 88.17 × 47.39
  4. Step 4: Simplify right side
    58.88x = 4,178.38
  5. Step 5: Solve for x
    x = 4,178.38/58.88
  6. Step 6: Final answer
    x = 70.96

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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.