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Finding the Fourth Proportional to 66,286.73, 99,445.66 and 21,913.48

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Solution

The fourth proportional to 66,286.73, 99,445.66 and 21,913.48 is: 32,875.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,286.73 : 99,445.66 = 21,913.48 : x
  2. Step 2: Convert to fraction form
    66,286.73/99,445.66 = 21,913.48/x
  3. Step 3: Cross multiply
    66,286.73x = 99,445.66 × 21,913.48
  4. Step 4: Simplify right side
    66,286.73x = 2,179,200,481.50
  5. Step 5: Solve for x
    x = 2,179,200,481.50/66,286.73
  6. Step 6: Final answer
    x = 32,875.37

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1.5x scale

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.