Home / 51,582.31-71,183.54-28,921.23

Finding the Fourth Proportional to 51,582.31, 71,183.54 and 28,921.23

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Solution

The fourth proportional to 51,582.31, 71,183.54 and 28,921.23 is: 39,911.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,582.31 : 71,183.54 = 28,921.23 : x
  2. Step 2: Convert to fraction form
    51,582.31/71,183.54 = 28,921.23/x
  3. Step 3: Cross multiply
    51,582.31x = 71,183.54 × 28,921.23
  4. Step 4: Simplify right side
    51,582.31x = 2,058,715,604.86
  5. Step 5: Solve for x
    x = 2,058,715,604.86/51,582.31
  6. Step 6: Final answer
    x = 39,911.27

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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.