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Finding the Fourth Proportional to 66,218.52, 99,283.94 and 26,211

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Solution

The fourth proportional to 66,218.52, 99,283.94 and 26,211 is: 39,299.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,218.52 : 99,283.94 = 26,211 : x
  2. Step 2: Convert to fraction form
    66,218.52/99,283.94 = 26,211/x
  3. Step 3: Cross multiply
    66,218.52x = 99,283.94 × 26,211
  4. Step 4: Simplify right side
    66,218.52x = 2,602,331,351.34
  5. Step 5: Solve for x
    x = 2,602,331,351.34/66,218.52
  6. Step 6: Final answer
    x = 39,299.15

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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.