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Finding the Fourth Proportional to 59.22, 88.61 and 45.59

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Solution

The fourth proportional to 59.22, 88.61 and 45.59 is: 68.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    59.22 : 88.61 = 45.59 : x
  2. Step 2: Convert to fraction form
    59.22/88.61 = 45.59/x
  3. Step 3: Cross multiply
    59.22x = 88.61 × 45.59
  4. Step 4: Simplify right side
    59.22x = 4,039.06
  5. Step 5: Solve for x
    x = 4,039.06/59.22
  6. Step 6: Final answer
    x = 68.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.