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Finding the Fourth Proportional to 52.62, 72.59 and 42.29

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Solution

The fourth proportional to 52.62, 72.59 and 42.29 is: 58.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    52.62 : 72.59 = 42.29 : x
  2. Step 2: Convert to fraction form
    52.62/72.59 = 42.29/x
  3. Step 3: Cross multiply
    52.62x = 72.59 × 42.29
  4. Step 4: Simplify right side
    52.62x = 3,069.26
  5. Step 5: Solve for x
    x = 3,069.26/52.62
  6. Step 6: Final answer
    x = 58.33

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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.