Home / 57,584.11-86,388.46-20,145.40

Finding the Fourth Proportional to 57,584.11, 86,388.46 and 20,145.40

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Solution

The fourth proportional to 57,584.11, 86,388.46 and 20,145.40 is: 30,222.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,584.11 : 86,388.46 = 20,145.40 : x
  2. Step 2: Convert to fraction form
    57,584.11/86,388.46 = 20,145.40/x
  3. Step 3: Cross multiply
    57,584.11x = 86,388.46 × 20,145.40
  4. Step 4: Simplify right side
    57,584.11x = 1,740,329,815.75
  5. Step 5: Solve for x
    x = 1,740,329,815.75/57,584.11
  6. Step 6: Final answer
    x = 30,222.40

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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.