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Finding the Fourth Proportional to 60.98, 83.78 and 59.36

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Solution

The fourth proportional to 60.98, 83.78 and 59.36 is: 81.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    60.98 : 83.78 = 59.36 : x
  2. Step 2: Convert to fraction form
    60.98/83.78 = 59.36/x
  3. Step 3: Cross multiply
    60.98x = 83.78 × 59.36
  4. Step 4: Simplify right side
    60.98x = 4,973.18
  5. Step 5: Solve for x
    x = 4,973.18/60.98
  6. Step 6: Final answer
    x = 81.55

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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.