Home / 50,710.38-76,049.64-21,120.54

Finding the Fourth Proportional to 50,710.38, 76,049.64 and 21,120.54

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Solution

The fourth proportional to 50,710.38, 76,049.64 and 21,120.54 is: 31,674.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,710.38 : 76,049.64 = 21,120.54 : x
  2. Step 2: Convert to fraction form
    50,710.38/76,049.64 = 21,120.54/x
  3. Step 3: Cross multiply
    50,710.38x = 76,049.64 × 21,120.54
  4. Step 4: Simplify right side
    50,710.38x = 1,606,209,463.61
  5. Step 5: Solve for x
    x = 1,606,209,463.61/50,710.38
  6. Step 6: Final answer
    x = 31,674.18

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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.