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Finding the Fourth Proportional to 79.95, 120.06 and 43.95

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Solution

The fourth proportional to 79.95, 120.06 and 43.95 is: 66.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    79.95 : 120.06 = 43.95 : x
  2. Step 2: Convert to fraction form
    79.95/120.06 = 43.95/x
  3. Step 3: Cross multiply
    79.95x = 120.06 × 43.95
  4. Step 4: Simplify right side
    79.95x = 5,276.64
  5. Step 5: Solve for x
    x = 5,276.64/79.95
  6. Step 6: Final answer
    x = 66.00

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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.