Home / 51,519.80-71,100.00-28,857.47

Finding the Fourth Proportional to 51,519.80, 71,100.00 and 28,857.47

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Solution

The fourth proportional to 51,519.80, 71,100.00 and 28,857.47 is: 39,824.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,519.80 : 71,100.00 = 28,857.47 : x
  2. Step 2: Convert to fraction form
    51,519.80/71,100.00 = 28,857.47/x
  3. Step 3: Cross multiply
    51,519.80x = 71,100.00 × 28,857.47
  4. Step 4: Simplify right side
    51,519.80x = 2,051,765,617.21
  5. Step 5: Solve for x
    x = 2,051,765,617.21/51,519.80
  6. Step 6: Final answer
    x = 39,824.80

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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.