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Finding the Fourth Proportional to 89.43, 134.19 and 35.37

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Solution

The fourth proportional to 89.43, 134.19 and 35.37 is: 53.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    89.43 : 134.19 = 35.37 : x
  2. Step 2: Convert to fraction form
    89.43/134.19 = 35.37/x
  3. Step 3: Cross multiply
    89.43x = 134.19 × 35.37
  4. Step 4: Simplify right side
    89.43x = 4,746.30
  5. Step 5: Solve for x
    x = 4,746.30/89.43
  6. Step 6: Final answer
    x = 53.07

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Why These Related Problems?

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