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Finding the Fourth Proportional to 59.89, 83.01 and 58.80

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Solution

The fourth proportional to 59.89, 83.01 and 58.80 is: 81.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    59.89 : 83.01 = 58.80 : x
  2. Step 2: Convert to fraction form
    59.89/83.01 = 58.80/x
  3. Step 3: Cross multiply
    59.89x = 83.01 × 58.80
  4. Step 4: Simplify right side
    59.89x = 4,881.20
  5. Step 5: Solve for x
    x = 4,881.20/59.89
  6. Step 6: Final answer
    x = 81.50

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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.