Home / 66,311.06-99,481.62-21,937.74

Finding the Fourth Proportional to 66,311.06, 99,481.62 and 21,937.74

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Solution

The fourth proportional to 66,311.06, 99,481.62 and 21,937.74 is: 32,911.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,311.06 : 99,481.62 = 21,937.74 : x
  2. Step 2: Convert to fraction form
    66,311.06/99,481.62 = 21,937.74/x
  3. Step 3: Cross multiply
    66,311.06x = 99,481.62 × 21,937.74
  4. Step 4: Simplify right side
    66,311.06x = 2,182,401,500.15
  5. Step 5: Solve for x
    x = 2,182,401,500.15/66,311.06
  6. Step 6: Final answer
    x = 32,911.58

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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.