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Finding the Fourth Proportional to 93.24, 139.69 and 35.43

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Solution

The fourth proportional to 93.24, 139.69 and 35.43 is: 53.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    93.24 : 139.69 = 35.43 : x
  2. Step 2: Convert to fraction form
    93.24/139.69 = 35.43/x
  3. Step 3: Cross multiply
    93.24x = 139.69 × 35.43
  4. Step 4: Simplify right side
    93.24x = 4,949.22
  5. Step 5: Solve for x
    x = 4,949.22/93.24
  6. Step 6: Final answer
    x = 53.08

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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.