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Finding the Fourth Proportional to 65.60, 90.56 and 44.87

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Solution

The fourth proportional to 65.60, 90.56 and 44.87 is: 61.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    65.60 : 90.56 = 44.87 : x
  2. Step 2: Convert to fraction form
    65.60/90.56 = 44.87/x
  3. Step 3: Cross multiply
    65.60x = 90.56 × 44.87
  4. Step 4: Simplify right side
    65.60x = 4,063.77
  5. Step 5: Solve for x
    x = 4,063.77/65.60
  6. Step 6: Final answer
    x = 61.95

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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.