Home / 50,790.86-70,091.57-28,129.34

Finding the Fourth Proportional to 50,790.86, 70,091.57 and 28,129.34

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Solution

The fourth proportional to 50,790.86, 70,091.57 and 28,129.34 is: 38,818.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,790.86 : 70,091.57 = 28,129.34 : x
  2. Step 2: Convert to fraction form
    50,790.86/70,091.57 = 28,129.34/x
  3. Step 3: Cross multiply
    50,790.86x = 70,091.57 × 28,129.34
  4. Step 4: Simplify right side
    50,790.86x = 1,971,629,603.66
  5. Step 5: Solve for x
    x = 1,971,629,603.66/50,790.86
  6. Step 6: Final answer
    x = 38,818.59

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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.