Home / 74,138.40-111,207.60-50,518.80

Finding the Fourth Proportional to 74,138.40, 111,207.60 and 50,518.80

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Solution

The fourth proportional to 74,138.40, 111,207.60 and 50,518.80 is: 75,778.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,138.40 : 111,207.60 = 50,518.80 : x
  2. Step 2: Convert to fraction form
    74,138.40/111,207.60 = 50,518.80/x
  3. Step 3: Cross multiply
    74,138.40x = 111,207.60 × 50,518.80
  4. Step 4: Simplify right side
    74,138.40x = 5,618,074,502.88
  5. Step 5: Solve for x
    x = 5,618,074,502.88/74,138.40
  6. Step 6: Final answer
    x = 75,778.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.