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Finding the Fourth Proportional to 94.02, 129.83 and 61.26

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Solution

The fourth proportional to 94.02, 129.83 and 61.26 is: 84.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    94.02 : 129.83 = 61.26 : x
  2. Step 2: Convert to fraction form
    94.02/129.83 = 61.26/x
  3. Step 3: Cross multiply
    94.02x = 129.83 × 61.26
  4. Step 4: Simplify right side
    94.02x = 7,953.08
  5. Step 5: Solve for x
    x = 7,953.08/94.02
  6. Step 6: Final answer
    x = 84.59

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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.