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Finding the Fourth Proportional to 93.67, 140.50 and 48

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Solution

The fourth proportional to 93.67, 140.50 and 48 is: 72.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    93.67 : 140.50 = 48 : x
  2. Step 2: Convert to fraction form
    93.67/140.50 = 48/x
  3. Step 3: Cross multiply
    93.67x = 140.50 × 48
  4. Step 4: Simplify right side
    93.67x = 6,744
  5. Step 5: Solve for x
    x = 6,744/93.67
  6. Step 6: Final answer
    x = 72.00

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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.