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Finding the Fourth Proportional to 54,817, 82,238.50 and 17,881

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Solution

The fourth proportional to 54,817, 82,238.50 and 17,881 is: 26,825.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,817 : 82,238.50 = 17,881 : x
  2. Step 2: Convert to fraction form
    54,817/82,238.50 = 17,881/x
  3. Step 3: Cross multiply
    54,817x = 82,238.50 × 17,881
  4. Step 4: Simplify right side
    54,817x = 1,470,506,618.50
  5. Step 5: Solve for x
    x = 1,470,506,618.50/54,817
  6. Step 6: Final answer
    x = 26,825.74

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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.