Home / 50,306.51-69,381.78-31,172.99

Finding the Fourth Proportional to 50,306.51, 69,381.78 and 31,172.99

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Solution

The fourth proportional to 50,306.51, 69,381.78 and 31,172.99 is: 42,993.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,306.51 : 69,381.78 = 31,172.99 : x
  2. Step 2: Convert to fraction form
    50,306.51/69,381.78 = 31,172.99/x
  3. Step 3: Cross multiply
    50,306.51x = 69,381.78 × 31,172.99
  4. Step 4: Simplify right side
    50,306.51x = 2,162,837,635.94
  5. Step 5: Solve for x
    x = 2,162,837,635.94/50,306.51
  6. Step 6: Final answer
    x = 42,993.20

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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.