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Finding the Fourth Proportional to 62.90, 94.29 and 62.09

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Solution

The fourth proportional to 62.90, 94.29 and 62.09 is: 93.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    62.90 : 94.29 = 62.09 : x
  2. Step 2: Convert to fraction form
    62.90/94.29 = 62.09/x
  3. Step 3: Cross multiply
    62.90x = 94.29 × 62.09
  4. Step 4: Simplify right side
    62.90x = 5,853.99
  5. Step 5: Solve for x
    x = 5,853.99/62.90
  6. Step 6: Final answer
    x = 93.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.