Home / 80,485.74-111,047.82-50,301.72

Finding the Fourth Proportional to 80,485.74, 111,047.82 and 50,301.72

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Solution

The fourth proportional to 80,485.74, 111,047.82 and 50,301.72 is: 69,402.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,485.74 : 111,047.82 = 50,301.72 : x
  2. Step 2: Convert to fraction form
    80,485.74/111,047.82 = 50,301.72/x
  3. Step 3: Cross multiply
    80,485.74x = 111,047.82 × 50,301.72
  4. Step 4: Simplify right side
    80,485.74x = 5,585,896,576.05
  5. Step 5: Solve for x
    x = 5,585,896,576.05/80,485.74
  6. Step 6: Final answer
    x = 69,402.31

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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.