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Finding the Fourth Proportional to 45.84, 63.30 and 29.49

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Solution

The fourth proportional to 45.84, 63.30 and 29.49 is: 40.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    45.84 : 63.30 = 29.49 : x
  2. Step 2: Convert to fraction form
    45.84/63.30 = 29.49/x
  3. Step 3: Cross multiply
    45.84x = 63.30 × 29.49
  4. Step 4: Simplify right side
    45.84x = 1,866.72
  5. Step 5: Solve for x
    x = 1,866.72/45.84
  6. Step 6: Final answer
    x = 40.72

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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.