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Finding the Fourth Proportional to 65.02, 97.54 and 51.59

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Solution

The fourth proportional to 65.02, 97.54 and 51.59 is: 77.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    65.02 : 97.54 = 51.59 : x
  2. Step 2: Convert to fraction form
    65.02/97.54 = 51.59/x
  3. Step 3: Cross multiply
    65.02x = 97.54 × 51.59
  4. Step 4: Simplify right side
    65.02x = 5,031.65
  5. Step 5: Solve for x
    x = 5,031.65/65.02
  6. Step 6: Final answer
    x = 77.39

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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.