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Finding the Fourth Proportional to 44.01, 65.59 and 42.79

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Solution

The fourth proportional to 44.01, 65.59 and 42.79 is: 63.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    44.01 : 65.59 = 42.79 : x
  2. Step 2: Convert to fraction form
    44.01/65.59 = 42.79/x
  3. Step 3: Cross multiply
    44.01x = 65.59 × 42.79
  4. Step 4: Simplify right side
    44.01x = 2,806.60
  5. Step 5: Solve for x
    x = 2,806.60/44.01
  6. Step 6: Final answer
    x = 63.77

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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.