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Finding the Fourth Proportional to 70.37, 97.02 and 52.64

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Solution

The fourth proportional to 70.37, 97.02 and 52.64 is: 72.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    70.37 : 97.02 = 52.64 : x
  2. Step 2: Convert to fraction form
    70.37/97.02 = 52.64/x
  3. Step 3: Cross multiply
    70.37x = 97.02 × 52.64
  4. Step 4: Simplify right side
    70.37x = 5,107.01
  5. Step 5: Solve for x
    x = 5,107.01/70.37
  6. Step 6: Final answer
    x = 72.57

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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.