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Finding the Fourth Proportional to 48.35, 72.83 and 43.34

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Solution

The fourth proportional to 48.35, 72.83 and 43.34 is: 65.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    48.35 : 72.83 = 43.34 : x
  2. Step 2: Convert to fraction form
    48.35/72.83 = 43.34/x
  3. Step 3: Cross multiply
    48.35x = 72.83 × 43.34
  4. Step 4: Simplify right side
    48.35x = 3,156.20
  5. Step 5: Solve for x
    x = 3,156.20/48.35
  6. Step 6: Final answer
    x = 65.27

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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.