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Finding the Fourth Proportional to 52.20, 71.66 and 46.32

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Solution

The fourth proportional to 52.20, 71.66 and 46.32 is: 63.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    52.20 : 71.66 = 46.32 : x
  2. Step 2: Convert to fraction form
    52.20/71.66 = 46.32/x
  3. Step 3: Cross multiply
    52.20x = 71.66 × 46.32
  4. Step 4: Simplify right side
    52.20x = 3,319.06
  5. Step 5: Solve for x
    x = 3,319.06/52.20
  6. Step 6: Final answer
    x = 63.58

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.