Home / 50,735.38-76,090.76-21,137.07

Finding the Fourth Proportional to 50,735.38, 76,090.76 and 21,137.07

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Solution

The fourth proportional to 50,735.38, 76,090.76 and 21,137.07 is: 31,700.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,735.38 : 76,090.76 = 21,137.07 : x
  2. Step 2: Convert to fraction form
    50,735.38/76,090.76 = 21,137.07/x
  3. Step 3: Cross multiply
    50,735.38x = 76,090.76 × 21,137.07
  4. Step 4: Simplify right side
    50,735.38x = 1,608,335,720.47
  5. Step 5: Solve for x
    x = 1,608,335,720.47/50,735.38
  6. Step 6: Final answer
    x = 31,700.48

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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.