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Finding the Fourth Proportional to 61.14, 92.15 and 56.01

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Solution

The fourth proportional to 61.14, 92.15 and 56.01 is: 84.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    61.14 : 92.15 = 56.01 : x
  2. Step 2: Convert to fraction form
    61.14/92.15 = 56.01/x
  3. Step 3: Cross multiply
    61.14x = 92.15 × 56.01
  4. Step 4: Simplify right side
    61.14x = 5,161.32
  5. Step 5: Solve for x
    x = 5,161.32/61.14
  6. Step 6: Final answer
    x = 84.42

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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.