Home / 66,149.16-99,237.39-21,778.56

Finding the Fourth Proportional to 66,149.16, 99,237.39 and 21,778.56

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Solution

The fourth proportional to 66,149.16, 99,237.39 and 21,778.56 is: 32,672.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,149.16 : 99,237.39 = 21,778.56 : x
  2. Step 2: Convert to fraction form
    66,149.16/99,237.39 = 21,778.56/x
  3. Step 3: Cross multiply
    66,149.16x = 99,237.39 × 21,778.56
  4. Step 4: Simplify right side
    66,149.16x = 2,161,247,452.36
  5. Step 5: Solve for x
    x = 2,161,247,452.36/66,149.16
  6. Step 6: Final answer
    x = 32,672.33

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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.