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Finding the Fourth Proportional to 62.99, 94.53 and 42.83

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Solution

The fourth proportional to 62.99, 94.53 and 42.83 is: 64.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    62.99 : 94.53 = 42.83 : x
  2. Step 2: Convert to fraction form
    62.99/94.53 = 42.83/x
  3. Step 3: Cross multiply
    62.99x = 94.53 × 42.83
  4. Step 4: Simplify right side
    62.99x = 4,048.72
  5. Step 5: Solve for x
    x = 4,048.72/62.99
  6. Step 6: Final answer
    x = 64.28

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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.