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Finding the Fourth Proportional to 66,671.32, 99,930.84 and 22,287.64

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Solution

The fourth proportional to 66,671.32, 99,930.84 and 22,287.64 is: 33,406.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,671.32 : 99,930.84 = 22,287.64 : x
  2. Step 2: Convert to fraction form
    66,671.32/99,930.84 = 22,287.64/x
  3. Step 3: Cross multiply
    66,671.32x = 99,930.84 × 22,287.64
  4. Step 4: Simplify right side
    66,671.32x = 2,227,222,586.82
  5. Step 5: Solve for x
    x = 2,227,222,586.82/66,671.32
  6. Step 6: Final answer
    x = 33,406.01

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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.