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Finding the Fourth Proportional to 58.72, 88.11 and 48.49

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Solution

The fourth proportional to 58.72, 88.11 and 48.49 is: 72.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    58.72 : 88.11 = 48.49 : x
  2. Step 2: Convert to fraction form
    58.72/88.11 = 48.49/x
  3. Step 3: Cross multiply
    58.72x = 88.11 × 48.49
  4. Step 4: Simplify right side
    58.72x = 4,272.45
  5. Step 5: Solve for x
    x = 4,272.45/58.72
  6. Step 6: Final answer
    x = 72.76

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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.