Home / 51,987.21-71,742.52-28,114.05

Finding the Fourth Proportional to 51,987.21, 71,742.52 and 28,114.05

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Solution

The fourth proportional to 51,987.21, 71,742.52 and 28,114.05 is: 38,797.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,987.21 : 71,742.52 = 28,114.05 : x
  2. Step 2: Convert to fraction form
    51,987.21/71,742.52 = 28,114.05/x
  3. Step 3: Cross multiply
    51,987.21x = 71,742.52 × 28,114.05
  4. Step 4: Simplify right side
    51,987.21x = 2,016,972,794.41
  5. Step 5: Solve for x
    x = 2,016,972,794.41/51,987.21
  6. Step 6: Final answer
    x = 38,797.48

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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.