Home / 51,782.85-71,462.91-29,128.97

Finding the Fourth Proportional to 51,782.85, 71,462.91 and 29,128.97

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Solution

The fourth proportional to 51,782.85, 71,462.91 and 29,128.97 is: 40,199.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,782.85 : 71,462.91 = 29,128.97 : x
  2. Step 2: Convert to fraction form
    51,782.85/71,462.91 = 29,128.97/x
  3. Step 3: Cross multiply
    51,782.85x = 71,462.91 × 29,128.97
  4. Step 4: Simplify right side
    51,782.85x = 2,081,640,961.50
  5. Step 5: Solve for x
    x = 2,081,640,961.50/51,782.85
  6. Step 6: Final answer
    x = 40,199.43

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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.