Home / 96,945.12-133,782-54,503.52

Finding the Fourth Proportional to 96,945.12, 133,782 and 54,503.52

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Solution

The fourth proportional to 96,945.12, 133,782 and 54,503.52 is: 75,213.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,945.12 : 133,782 = 54,503.52 : x
  2. Step 2: Convert to fraction form
    96,945.12/133,782 = 54,503.52/x
  3. Step 3: Cross multiply
    96,945.12x = 133,782 × 54,503.52
  4. Step 4: Simplify right side
    96,945.12x = 7,291,589,912.64
  5. Step 5: Solve for x
    x = 7,291,589,912.64/96,945.12
  6. Step 6: Final answer
    x = 75,213.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.