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Finding the Fourth Proportional to 59.92, 90.06 and 52.72

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Solution

The fourth proportional to 59.92, 90.06 and 52.72 is: 79.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    59.92 : 90.06 = 52.72 : x
  2. Step 2: Convert to fraction form
    59.92/90.06 = 52.72/x
  3. Step 3: Cross multiply
    59.92x = 90.06 × 52.72
  4. Step 4: Simplify right side
    59.92x = 4,747.96
  5. Step 5: Solve for x
    x = 4,747.96/59.92
  6. Step 6: Final answer
    x = 79.24

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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.