Home / 66,988.02-100,388.21-50,337.44

Finding the Fourth Proportional to 66,988.02, 100,388.21 and 50,337.44

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Solution

The fourth proportional to 66,988.02, 100,388.21 and 50,337.44 is: 75,435.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,988.02 : 100,388.21 = 50,337.44 : x
  2. Step 2: Convert to fraction form
    66,988.02/100,388.21 = 50,337.44/x
  3. Step 3: Cross multiply
    66,988.02x = 100,388.21 × 50,337.44
  4. Step 4: Simplify right side
    66,988.02x = 5,053,285,120.77
  5. Step 5: Solve for x
    x = 5,053,285,120.77/66,988.02
  6. Step 6: Final answer
    x = 75,435.65

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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.