Home / 90,982.85-125,555.67-50,147.91

Finding the Fourth Proportional to 90,982.85, 125,555.67 and 50,147.91

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Solution

The fourth proportional to 90,982.85, 125,555.67 and 50,147.91 is: 69,203.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,982.85 : 125,555.67 = 50,147.91 : x
  2. Step 2: Convert to fraction form
    90,982.85/125,555.67 = 50,147.91/x
  3. Step 3: Cross multiply
    90,982.85x = 125,555.67 × 50,147.91
  4. Step 4: Simplify right side
    90,982.85x = 6,296,354,439.15
  5. Step 5: Solve for x
    x = 6,296,354,439.15/90,982.85
  6. Step 6: Final answer
    x = 69,203.75

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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.