Home / 66,500.90-99,729.93-22,115.73

Finding the Fourth Proportional to 66,500.90, 99,729.93 and 22,115.73

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Solution

The fourth proportional to 66,500.90, 99,729.93 and 22,115.73 is: 33,166.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,500.90 : 99,729.93 = 22,115.73 : x
  2. Step 2: Convert to fraction form
    66,500.90/99,729.93 = 22,115.73/x
  3. Step 3: Cross multiply
    66,500.90x = 99,729.93 × 22,115.73
  4. Step 4: Simplify right side
    66,500.90x = 2,205,600,661.72
  5. Step 5: Solve for x
    x = 2,205,600,661.72/66,500.90
  6. Step 6: Final answer
    x = 33,166.48

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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.