Home / 57,807.28-86,686.44-18,353.80

Finding the Fourth Proportional to 57,807.28, 86,686.44 and 18,353.80

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Solution

The fourth proportional to 57,807.28, 86,686.44 and 18,353.80 is: 27,522.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,807.28 : 86,686.44 = 18,353.80 : x
  2. Step 2: Convert to fraction form
    57,807.28/86,686.44 = 18,353.80/x
  3. Step 3: Cross multiply
    57,807.28x = 86,686.44 × 18,353.80
  4. Step 4: Simplify right side
    57,807.28x = 1,591,025,582.47
  5. Step 5: Solve for x
    x = 1,591,025,582.47/57,807.28
  6. Step 6: Final answer
    x = 27,522.93

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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.