Home / 66,040.20-99,056.82-21,661.11

Finding the Fourth Proportional to 66,040.20, 99,056.82 and 21,661.11

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Solution

The fourth proportional to 66,040.20, 99,056.82 and 21,661.11 is: 32,490.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,040.20 : 99,056.82 = 21,661.11 : x
  2. Step 2: Convert to fraction form
    66,040.20/99,056.82 = 21,661.11/x
  3. Step 3: Cross multiply
    66,040.20x = 99,056.82 × 21,661.11
  4. Step 4: Simplify right side
    66,040.20x = 2,145,680,674.27
  5. Step 5: Solve for x
    x = 2,145,680,674.27/66,040.20
  6. Step 6: Final answer
    x = 32,490.52

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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.