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Finding the Fourth Proportional to 44.84, 66.90 and 42.26

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Solution

The fourth proportional to 44.84, 66.90 and 42.26 is: 63.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    44.84 : 66.90 = 42.26 : x
  2. Step 2: Convert to fraction form
    44.84/66.90 = 42.26/x
  3. Step 3: Cross multiply
    44.84x = 66.90 × 42.26
  4. Step 4: Simplify right side
    44.84x = 2,827.19
  5. Step 5: Solve for x
    x = 2,827.19/44.84
  6. Step 6: Final answer
    x = 63.05

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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.