Home / 57,582.80-86,382.28-20,134.38

Finding the Fourth Proportional to 57,582.80, 86,382.28 and 20,134.38

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Solution

The fourth proportional to 57,582.80, 86,382.28 and 20,134.38 is: 30,204.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,582.80 : 86,382.28 = 20,134.38 : x
  2. Step 2: Convert to fraction form
    57,582.80/86,382.28 = 20,134.38/x
  3. Step 3: Cross multiply
    57,582.80x = 86,382.28 × 20,134.38
  4. Step 4: Simplify right side
    57,582.80x = 1,739,253,650.79
  5. Step 5: Solve for x
    x = 1,739,253,650.79/57,582.80
  6. Step 6: Final answer
    x = 30,204.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.