Home / 66,149.37-99,230.36-18,765.45

Finding the Fourth Proportional to 66,149.37, 99,230.36 and 18,765.45

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Solution

The fourth proportional to 66,149.37, 99,230.36 and 18,765.45 is: 28,149.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,149.37 : 99,230.36 = 18,765.45 : x
  2. Step 2: Convert to fraction form
    66,149.37/99,230.36 = 18,765.45/x
  3. Step 3: Cross multiply
    66,149.37x = 99,230.36 × 18,765.45
  4. Step 4: Simplify right side
    66,149.37x = 1,862,102,265.23
  5. Step 5: Solve for x
    x = 1,862,102,265.23/66,149.37
  6. Step 6: Final answer
    x = 28,149.96

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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.