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Finding the Fourth Proportional to 72.84, 100.51 and 41.33

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Solution

The fourth proportional to 72.84, 100.51 and 41.33 is: 57.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    72.84 : 100.51 = 41.33 : x
  2. Step 2: Convert to fraction form
    72.84/100.51 = 41.33/x
  3. Step 3: Cross multiply
    72.84x = 100.51 × 41.33
  4. Step 4: Simplify right side
    72.84x = 4,153.58
  5. Step 5: Solve for x
    x = 4,153.58/72.84
  6. Step 6: Final answer
    x = 57.03

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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.