Home / 51,575.87-71,180.61-28,920.98

Finding the Fourth Proportional to 51,575.87, 71,180.61 and 28,920.98

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Solution

The fourth proportional to 51,575.87, 71,180.61 and 28,920.98 is: 39,914.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,575.87 : 71,180.61 = 28,920.98 : x
  2. Step 2: Convert to fraction form
    51,575.87/71,180.61 = 28,920.98/x
  3. Step 3: Cross multiply
    51,575.87x = 71,180.61 × 28,920.98
  4. Step 4: Simplify right side
    51,575.87x = 2,058,613,067.70
  5. Step 5: Solve for x
    x = 2,058,613,067.70/51,575.87
  6. Step 6: Final answer
    x = 39,914.27

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1.5x scale

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.