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Finding the Fourth Proportional to 45.94, 63.54 and 39.14

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Solution

The fourth proportional to 45.94, 63.54 and 39.14 is: 54.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    45.94 : 63.54 = 39.14 : x
  2. Step 2: Convert to fraction form
    45.94/63.54 = 39.14/x
  3. Step 3: Cross multiply
    45.94x = 63.54 × 39.14
  4. Step 4: Simplify right side
    45.94x = 2,486.96
  5. Step 5: Solve for x
    x = 2,486.96/45.94
  6. Step 6: Final answer
    x = 54.13

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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.