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Finding the Fourth Proportional to 60.33, 89.99 and 50.76

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Solution

The fourth proportional to 60.33, 89.99 and 50.76 is: 75.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    60.33 : 89.99 = 50.76 : x
  2. Step 2: Convert to fraction form
    60.33/89.99 = 50.76/x
  3. Step 3: Cross multiply
    60.33x = 89.99 × 50.76
  4. Step 4: Simplify right side
    60.33x = 4,567.89
  5. Step 5: Solve for x
    x = 4,567.89/60.33
  6. Step 6: Final answer
    x = 75.72

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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.