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Finding the Fourth Proportional to 36.86, 55.06 and 30.10

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Solution

The fourth proportional to 36.86, 55.06 and 30.10 is: 44.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    36.86 : 55.06 = 30.10 : x
  2. Step 2: Convert to fraction form
    36.86/55.06 = 30.10/x
  3. Step 3: Cross multiply
    36.86x = 55.06 × 30.10
  4. Step 4: Simplify right side
    36.86x = 1,657.31
  5. Step 5: Solve for x
    x = 1,657.31/36.86
  6. Step 6: Final answer
    x = 44.96

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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.