Home / 51,193.98-70,651.80-28,540.31

Finding the Fourth Proportional to 51,193.98, 70,651.80 and 28,540.31

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Solution

The fourth proportional to 51,193.98, 70,651.80 and 28,540.31 is: 39,387.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,193.98 : 70,651.80 = 28,540.31 : x
  2. Step 2: Convert to fraction form
    51,193.98/70,651.80 = 28,540.31/x
  3. Step 3: Cross multiply
    51,193.98x = 70,651.80 × 28,540.31
  4. Step 4: Simplify right side
    51,193.98x = 2,016,423,920.80
  5. Step 5: Solve for x
    x = 2,016,423,920.80/51,193.98
  6. Step 6: Final answer
    x = 39,387.91

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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.