Home / 51,520.25-71,093.90-28,857.47

Finding the Fourth Proportional to 51,520.25, 71,093.90 and 28,857.47

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Solution

The fourth proportional to 51,520.25, 71,093.90 and 28,857.47 is: 39,821.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,520.25 : 71,093.90 = 28,857.47 : x
  2. Step 2: Convert to fraction form
    51,520.25/71,093.90 = 28,857.47/x
  3. Step 3: Cross multiply
    51,520.25x = 71,093.90 × 28,857.47
  4. Step 4: Simplify right side
    51,520.25x = 2,051,589,803.11
  5. Step 5: Solve for x
    x = 2,051,589,803.11/51,520.25
  6. Step 6: Final answer
    x = 39,821.04

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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.