Home / 51,619.30-71,235.34-28,963.20

Finding the Fourth Proportional to 51,619.30, 71,235.34 and 28,963.20

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Solution

The fourth proportional to 51,619.30, 71,235.34 and 28,963.20 is: 39,969.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,619.30 : 71,235.34 = 28,963.20 : x
  2. Step 2: Convert to fraction form
    51,619.30/71,235.34 = 28,963.20/x
  3. Step 3: Cross multiply
    51,619.30x = 71,235.34 × 28,963.20
  4. Step 4: Simplify right side
    51,619.30x = 2,063,203,399.49
  5. Step 5: Solve for x
    x = 2,063,203,399.49/51,619.30
  6. Step 6: Final answer
    x = 39,969.61

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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.