Home / 72,975.20-100,710.96-41,147.06

Finding the Fourth Proportional to 72,975.20, 100,710.96 and 41,147.06

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Solution

The fourth proportional to 72,975.20, 100,710.96 and 41,147.06 is: 56,785.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,975.20 : 100,710.96 = 41,147.06 : x
  2. Step 2: Convert to fraction form
    72,975.20/100,710.96 = 41,147.06/x
  3. Step 3: Cross multiply
    72,975.20x = 100,710.96 × 41,147.06
  4. Step 4: Simplify right side
    72,975.20x = 4,143,959,913.78
  5. Step 5: Solve for x
    x = 4,143,959,913.78/72,975.20
  6. Step 6: Final answer
    x = 56,785.87

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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.