Home / 50,800.35-70,105.04-28,139.69

Finding the Fourth Proportional to 50,800.35, 70,105.04 and 28,139.69

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Solution

The fourth proportional to 50,800.35, 70,105.04 and 28,139.69 is: 38,833.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,800.35 : 70,105.04 = 28,139.69 : x
  2. Step 2: Convert to fraction form
    50,800.35/70,105.04 = 28,139.69/x
  3. Step 3: Cross multiply
    50,800.35x = 70,105.04 × 28,139.69
  4. Step 4: Simplify right side
    50,800.35x = 1,972,733,601.81
  5. Step 5: Solve for x
    x = 1,972,733,601.81/50,800.35
  6. Step 6: Final answer
    x = 38,833.07

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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.