Home / 66,150.16-99,238.89-21,779.56

Finding the Fourth Proportional to 66,150.16, 99,238.89 and 21,779.56

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Solution

The fourth proportional to 66,150.16, 99,238.89 and 21,779.56 is: 32,673.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,150.16 : 99,238.89 = 21,779.56 : x
  2. Step 2: Convert to fraction form
    66,150.16/99,238.89 = 21,779.56/x
  3. Step 3: Cross multiply
    66,150.16x = 99,238.89 × 21,779.56
  4. Step 4: Simplify right side
    66,150.16x = 2,161,379,359.09
  5. Step 5: Solve for x
    x = 2,161,379,359.09/66,150.16
  6. Step 6: Final answer
    x = 32,673.83

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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.