Home / 50,790.72-70,090.20-28,131.24

Finding the Fourth Proportional to 50,790.72, 70,090.20 and 28,131.24

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Solution

The fourth proportional to 50,790.72, 70,090.20 and 28,131.24 is: 38,820.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,790.72 : 70,090.20 = 28,131.24 : x
  2. Step 2: Convert to fraction form
    50,790.72/70,090.20 = 28,131.24/x
  3. Step 3: Cross multiply
    50,790.72x = 70,090.20 × 28,131.24
  4. Step 4: Simplify right side
    50,790.72x = 1,971,724,237.85
  5. Step 5: Solve for x
    x = 1,971,724,237.85/50,790.72
  6. Step 6: Final answer
    x = 38,820.56

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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.