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Finding the Fourth Proportional to 62.79, 94.05 and 48.29

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Solution

The fourth proportional to 62.79, 94.05 and 48.29 is: 72.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    62.79 : 94.05 = 48.29 : x
  2. Step 2: Convert to fraction form
    62.79/94.05 = 48.29/x
  3. Step 3: Cross multiply
    62.79x = 94.05 × 48.29
  4. Step 4: Simplify right side
    62.79x = 4,541.20
  5. Step 5: Solve for x
    x = 4,541.20/62.79
  6. Step 6: Final answer
    x = 72.32

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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.