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Finding the Fourth Proportional to 53.03, 79.36 and 44.48

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Solution

The fourth proportional to 53.03, 79.36 and 44.48 is: 66.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    53.03 : 79.36 = 44.48 : x
  2. Step 2: Convert to fraction form
    53.03/79.36 = 44.48/x
  3. Step 3: Cross multiply
    53.03x = 79.36 × 44.48
  4. Step 4: Simplify right side
    53.03x = 3,529.93
  5. Step 5: Solve for x
    x = 3,529.93/53.03
  6. Step 6: Final answer
    x = 66.56

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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.