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Finding the Fourth Proportional to 59.45, 88.68 and 55.13

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Solution

The fourth proportional to 59.45, 88.68 and 55.13 is: 82.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    59.45 : 88.68 = 55.13 : x
  2. Step 2: Convert to fraction form
    59.45/88.68 = 55.13/x
  3. Step 3: Cross multiply
    59.45x = 88.68 × 55.13
  4. Step 4: Simplify right side
    59.45x = 4,888.69
  5. Step 5: Solve for x
    x = 4,888.69/59.45
  6. Step 6: Final answer
    x = 82.24

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.