Home / 72,982.28-100,629.25-51,475.57

Finding the Fourth Proportional to 72,982.28, 100,629.25 and 51,475.57

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Solution

The fourth proportional to 72,982.28, 100,629.25 and 51,475.57 is: 70,975.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,982.28 : 100,629.25 = 51,475.57 : x
  2. Step 2: Convert to fraction form
    72,982.28/100,629.25 = 51,475.57/x
  3. Step 3: Cross multiply
    72,982.28x = 100,629.25 × 51,475.57
  4. Step 4: Simplify right side
    72,982.28x = 5,179,947,622.16
  5. Step 5: Solve for x
    x = 5,179,947,622.16/72,982.28
  6. Step 6: Final answer
    x = 70,975.41

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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.