Home / 80,420.40-111,050.66-50,257.25

Finding the Fourth Proportional to 80,420.40, 111,050.66 and 50,257.25

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Solution

The fourth proportional to 80,420.40, 111,050.66 and 50,257.25 is: 69,399.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,420.40 : 111,050.66 = 50,257.25 : x
  2. Step 2: Convert to fraction form
    80,420.40/111,050.66 = 50,257.25/x
  3. Step 3: Cross multiply
    80,420.40x = 111,050.66 × 50,257.25
  4. Step 4: Simplify right side
    80,420.40x = 5,581,100,782.29
  5. Step 5: Solve for x
    x = 5,581,100,782.29/80,420.40
  6. Step 6: Final answer
    x = 69,399.07

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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.