Home / 51,523.91-77,315.09-21,938.66

Finding the Fourth Proportional to 51,523.91, 77,315.09 and 21,938.66

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Solution

The fourth proportional to 51,523.91, 77,315.09 and 21,938.66 is: 32,920.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,523.91 : 77,315.09 = 21,938.66 : x
  2. Step 2: Convert to fraction form
    51,523.91/77,315.09 = 21,938.66/x
  3. Step 3: Cross multiply
    51,523.91x = 77,315.09 × 21,938.66
  4. Step 4: Simplify right side
    51,523.91x = 1,696,189,389.45
  5. Step 5: Solve for x
    x = 1,696,189,389.45/51,523.91
  6. Step 6: Final answer
    x = 32,920.43

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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.