Home / 51,912.03-71,643.92-31,782.21

Finding the Fourth Proportional to 51,912.03, 71,643.92 and 31,782.21

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Solution

The fourth proportional to 51,912.03, 71,643.92 and 31,782.21 is: 43,862.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,912.03 : 71,643.92 = 31,782.21 : x
  2. Step 2: Convert to fraction form
    51,912.03/71,643.92 = 31,782.21/x
  3. Step 3: Cross multiply
    51,912.03x = 71,643.92 × 31,782.21
  4. Step 4: Simplify right side
    51,912.03x = 2,277,001,951.75
  5. Step 5: Solve for x
    x = 2,277,001,951.75/51,912.03
  6. Step 6: Final answer
    x = 43,862.70

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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.