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Finding the Fourth Proportional to 73.79, 110.26 and 64.52

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Solution

The fourth proportional to 73.79, 110.26 and 64.52 is: 96.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    73.79 : 110.26 = 64.52 : x
  2. Step 2: Convert to fraction form
    73.79/110.26 = 64.52/x
  3. Step 3: Cross multiply
    73.79x = 110.26 × 64.52
  4. Step 4: Simplify right side
    73.79x = 7,113.98
  5. Step 5: Solve for x
    x = 7,113.98/73.79
  6. Step 6: Final answer
    x = 96.41

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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.