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Finding the Fourth Proportional to 50.59, 76.16 and 45.63

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Solution

The fourth proportional to 50.59, 76.16 and 45.63 is: 68.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    50.59 : 76.16 = 45.63 : x
  2. Step 2: Convert to fraction form
    50.59/76.16 = 45.63/x
  3. Step 3: Cross multiply
    50.59x = 76.16 × 45.63
  4. Step 4: Simplify right side
    50.59x = 3,475.18
  5. Step 5: Solve for x
    x = 3,475.18/50.59
  6. Step 6: Final answer
    x = 68.69

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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.