Home / 90,835.75-125,355.27-50,556.70

Finding the Fourth Proportional to 90,835.75, 125,355.27 and 50,556.70

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Solution

The fourth proportional to 90,835.75, 125,355.27 and 50,556.70 is: 69,769.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,835.75 : 125,355.27 = 50,556.70 : x
  2. Step 2: Convert to fraction form
    90,835.75/125,355.27 = 50,556.70/x
  3. Step 3: Cross multiply
    90,835.75x = 125,355.27 × 50,556.70
  4. Step 4: Simplify right side
    90,835.75x = 6,337,548,778.81
  5. Step 5: Solve for x
    x = 6,337,548,778.81/90,835.75
  6. Step 6: Final answer
    x = 69,769.32

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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.