Home / 66,247.50-99,375.87-21,905.46

Finding the Fourth Proportional to 66,247.50, 99,375.87 and 21,905.46

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Solution

The fourth proportional to 66,247.50, 99,375.87 and 21,905.46 is: 32,859.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,247.50 : 99,375.87 = 21,905.46 : x
  2. Step 2: Convert to fraction form
    66,247.50/99,375.87 = 21,905.46/x
  3. Step 3: Cross multiply
    66,247.50x = 99,375.87 × 21,905.46
  4. Step 4: Simplify right side
    66,247.50x = 2,176,874,145.25
  5. Step 5: Solve for x
    x = 2,176,874,145.25/66,247.50
  6. Step 6: Final answer
    x = 32,859.72

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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.