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Finding the Fourth Proportional to 73.19, 101.10 and 61.04

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Solution

The fourth proportional to 73.19, 101.10 and 61.04 is: 84.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    73.19 : 101.10 = 61.04 : x
  2. Step 2: Convert to fraction form
    73.19/101.10 = 61.04/x
  3. Step 3: Cross multiply
    73.19x = 101.10 × 61.04
  4. Step 4: Simplify right side
    73.19x = 6,170.64
  5. Step 5: Solve for x
    x = 6,170.64/73.19
  6. Step 6: Final answer
    x = 84.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.