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Finding the Fourth Proportional to 66,671.28, 99,986.07 and 22,287.65

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Solution

The fourth proportional to 66,671.28, 99,986.07 and 22,287.65 is: 33,424.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,671.28 : 99,986.07 = 22,287.65 : x
  2. Step 2: Convert to fraction form
    66,671.28/99,986.07 = 22,287.65/x
  3. Step 3: Cross multiply
    66,671.28x = 99,986.07 × 22,287.65
  4. Step 4: Simplify right side
    66,671.28x = 2,228,454,783.00
  5. Step 5: Solve for x
    x = 2,228,454,783.00/66,671.28
  6. Step 6: Final answer
    x = 33,424.51

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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.