Home / 50,711.10-76,050.45-21,121.80

Finding the Fourth Proportional to 50,711.10, 76,050.45 and 21,121.80

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Solution

The fourth proportional to 50,711.10, 76,050.45 and 21,121.80 is: 31,675.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,711.10 : 76,050.45 = 21,121.80 : x
  2. Step 2: Convert to fraction form
    50,711.10/76,050.45 = 21,121.80/x
  3. Step 3: Cross multiply
    50,711.10x = 76,050.45 × 21,121.80
  4. Step 4: Simplify right side
    50,711.10x = 1,606,322,394.81
  5. Step 5: Solve for x
    x = 1,606,322,394.81/50,711.10
  6. Step 6: Final answer
    x = 31,675.95

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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.