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Finding the Fourth Proportional to 91.43, 126.16 and 52.62

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Solution

The fourth proportional to 91.43, 126.16 and 52.62 is: 72.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91.43 : 126.16 = 52.62 : x
  2. Step 2: Convert to fraction form
    91.43/126.16 = 52.62/x
  3. Step 3: Cross multiply
    91.43x = 126.16 × 52.62
  4. Step 4: Simplify right side
    91.43x = 6,637.91
  5. Step 5: Solve for x
    x = 6,637.91/91.43
  6. Step 6: Final answer
    x = 72.60

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