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Finding the Fourth Proportional to 66,660.64, 99,953.52 and 22,264

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Solution

The fourth proportional to 66,660.64, 99,953.52 and 22,264 is: 33,383.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,660.64 : 99,953.52 = 22,264 : x
  2. Step 2: Convert to fraction form
    66,660.64/99,953.52 = 22,264/x
  3. Step 3: Cross multiply
    66,660.64x = 99,953.52 × 22,264
  4. Step 4: Simplify right side
    66,660.64x = 2,225,365,169.28
  5. Step 5: Solve for x
    x = 2,225,365,169.28/66,660.64
  6. Step 6: Final answer
    x = 33,383.50

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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.