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Finding the Fourth Proportional to 44.61, 66.80 and 34.32

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Solution

The fourth proportional to 44.61, 66.80 and 34.32 is: 51.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    44.61 : 66.80 = 34.32 : x
  2. Step 2: Convert to fraction form
    44.61/66.80 = 34.32/x
  3. Step 3: Cross multiply
    44.61x = 66.80 × 34.32
  4. Step 4: Simplify right side
    44.61x = 2,292.82
  5. Step 5: Solve for x
    x = 2,292.82/44.61
  6. Step 6: Final answer
    x = 51.40

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.