Home / 66,121.20-98,893.80-59,151.60

Finding the Fourth Proportional to 66,121.20, 98,893.80 and 59,151.60

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Solution

The fourth proportional to 66,121.20, 98,893.80 and 59,151.60 is: 88,469.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,121.20 : 98,893.80 = 59,151.60 : x
  2. Step 2: Convert to fraction form
    66,121.20/98,893.80 = 59,151.60/x
  3. Step 3: Cross multiply
    66,121.20x = 98,893.80 × 59,151.60
  4. Step 4: Simplify right side
    66,121.20x = 5,849,726,500.08
  5. Step 5: Solve for x
    x = 5,849,726,500.08/66,121.20
  6. Step 6: Final answer
    x = 88,469.76

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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.