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Finding the Fourth Proportional to 84.77, 116.98 and 45.95

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Solution

The fourth proportional to 84.77, 116.98 and 45.95 is: 63.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    84.77 : 116.98 = 45.95 : x
  2. Step 2: Convert to fraction form
    84.77/116.98 = 45.95/x
  3. Step 3: Cross multiply
    84.77x = 116.98 × 45.95
  4. Step 4: Simplify right side
    84.77x = 5,375.32
  5. Step 5: Solve for x
    x = 5,375.32/84.77
  6. Step 6: Final answer
    x = 63.41

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Find fourth proportional to 42.38, 58.49 and 22.98
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.