Home / 66,220.35-99,333.59-21,850.98

Finding the Fourth Proportional to 66,220.35, 99,333.59 and 21,850.98

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Solution

The fourth proportional to 66,220.35, 99,333.59 and 21,850.98 is: 32,777.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,220.35 : 99,333.59 = 21,850.98 : x
  2. Step 2: Convert to fraction form
    66,220.35/99,333.59 = 21,850.98/x
  3. Step 3: Cross multiply
    66,220.35x = 99,333.59 × 21,850.98
  4. Step 4: Simplify right side
    66,220.35x = 2,170,536,179.16
  5. Step 5: Solve for x
    x = 2,170,536,179.16/66,220.35
  6. Step 6: Final answer
    x = 32,777.48

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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.