Home / 50,719.92-76,025.24-21,129.84

Finding the Fourth Proportional to 50,719.92, 76,025.24 and 21,129.84

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Solution

The fourth proportional to 50,719.92, 76,025.24 and 21,129.84 is: 31,672.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,719.92 : 76,025.24 = 21,129.84 : x
  2. Step 2: Convert to fraction form
    50,719.92/76,025.24 = 21,129.84/x
  3. Step 3: Cross multiply
    50,719.92x = 76,025.24 × 21,129.84
  4. Step 4: Simplify right side
    50,719.92x = 1,606,401,157.16
  5. Step 5: Solve for x
    x = 1,606,401,157.16/50,719.92
  6. Step 6: Final answer
    x = 31,672.00

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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.