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Finding the Fourth Proportional to 59.82, 90.17 and 56.11

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Solution

The fourth proportional to 59.82, 90.17 and 56.11 is: 84.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    59.82 : 90.17 = 56.11 : x
  2. Step 2: Convert to fraction form
    59.82/90.17 = 56.11/x
  3. Step 3: Cross multiply
    59.82x = 90.17 × 56.11
  4. Step 4: Simplify right side
    59.82x = 5,059.13
  5. Step 5: Solve for x
    x = 5,059.13/59.82
  6. Step 6: Final answer
    x = 84.57

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.