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Finding the Fourth Proportional to 53.02, 73.67 and 52.37

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Solution

The fourth proportional to 53.02, 73.67 and 52.37 is: 72.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    53.02 : 73.67 = 52.37 : x
  2. Step 2: Convert to fraction form
    53.02/73.67 = 52.37/x
  3. Step 3: Cross multiply
    53.02x = 73.67 × 52.37
  4. Step 4: Simplify right side
    53.02x = 3,858.10
  5. Step 5: Solve for x
    x = 3,858.10/53.02
  6. Step 6: Final answer
    x = 72.77

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.