Home / 51,986.40-71,742-29,629.92

Finding the Fourth Proportional to 51,986.40, 71,742 and 29,629.92

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Solution

The fourth proportional to 51,986.40, 71,742 and 29,629.92 is: 40,889.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,986.40 : 71,742 = 29,629.92 : x
  2. Step 2: Convert to fraction form
    51,986.40/71,742 = 29,629.92/x
  3. Step 3: Cross multiply
    51,986.40x = 71,742 × 29,629.92
  4. Step 4: Simplify right side
    51,986.40x = 2,125,709,720.64
  5. Step 5: Solve for x
    x = 2,125,709,720.64/51,986.40
  6. Step 6: Final answer
    x = 40,889.73

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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.