Home / 51,118.85-70,542.29-28,758.53

Finding the Fourth Proportional to 51,118.85, 70,542.29 and 28,758.53

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Solution

The fourth proportional to 51,118.85, 70,542.29 and 28,758.53 is: 39,685.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,118.85 : 70,542.29 = 28,758.53 : x
  2. Step 2: Convert to fraction form
    51,118.85/70,542.29 = 28,758.53/x
  3. Step 3: Cross multiply
    51,118.85x = 70,542.29 × 28,758.53
  4. Step 4: Simplify right side
    51,118.85x = 2,028,692,419.44
  5. Step 5: Solve for x
    x = 2,028,692,419.44/51,118.85
  6. Step 6: Final answer
    x = 39,685.80

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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.