Home / 50,790.43-70,091.39-28,129.86

Finding the Fourth Proportional to 50,790.43, 70,091.39 and 28,129.86

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Solution

The fourth proportional to 50,790.43, 70,091.39 and 28,129.86 is: 38,819.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,790.43 : 70,091.39 = 28,129.86 : x
  2. Step 2: Convert to fraction form
    50,790.43/70,091.39 = 28,129.86/x
  3. Step 3: Cross multiply
    50,790.43x = 70,091.39 × 28,129.86
  4. Step 4: Simplify right side
    50,790.43x = 1,971,660,875.19
  5. Step 5: Solve for x
    x = 1,971,660,875.19/50,790.43
  6. Step 6: Final answer
    x = 38,819.54

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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.