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Finding the Fourth Proportional to 60.97, 83.58 and 60.91

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Solution

The fourth proportional to 60.97, 83.58 and 60.91 is: 83.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    60.97 : 83.58 = 60.91 : x
  2. Step 2: Convert to fraction form
    60.97/83.58 = 60.91/x
  3. Step 3: Cross multiply
    60.97x = 83.58 × 60.91
  4. Step 4: Simplify right side
    60.97x = 5,090.86
  5. Step 5: Solve for x
    x = 5,090.86/60.97
  6. Step 6: Final answer
    x = 83.50

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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.