Home / 66,150.37-99,231.86-18,766.45

Finding the Fourth Proportional to 66,150.37, 99,231.86 and 18,766.45

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Solution

The fourth proportional to 66,150.37, 99,231.86 and 18,766.45 is: 28,151.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,150.37 : 99,231.86 = 18,766.45 : x
  2. Step 2: Convert to fraction form
    66,150.37/99,231.86 = 18,766.45/x
  3. Step 3: Cross multiply
    66,150.37x = 99,231.86 × 18,766.45
  4. Step 4: Simplify right side
    66,150.37x = 1,862,229,739.10
  5. Step 5: Solve for x
    x = 1,862,229,739.10/66,150.37
  6. Step 6: Final answer
    x = 28,151.46

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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.