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Finding the Fourth Proportional to 44.77, 66.84 and 42.04

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Solution

The fourth proportional to 44.77, 66.84 and 42.04 is: 62.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    44.77 : 66.84 = 42.04 : x
  2. Step 2: Convert to fraction form
    44.77/66.84 = 42.04/x
  3. Step 3: Cross multiply
    44.77x = 66.84 × 42.04
  4. Step 4: Simplify right side
    44.77x = 2,809.62
  5. Step 5: Solve for x
    x = 2,809.62/44.77
  6. Step 6: Final answer
    x = 62.76

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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.