Home / 57,820.05-86,730.35-18,381.15

Finding the Fourth Proportional to 57,820.05, 86,730.35 and 18,381.15

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Solution

The fourth proportional to 57,820.05, 86,730.35 and 18,381.15 is: 27,571.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,820.05 : 86,730.35 = 18,381.15 : x
  2. Step 2: Convert to fraction form
    57,820.05/86,730.35 = 18,381.15/x
  3. Step 3: Cross multiply
    57,820.05x = 86,730.35 × 18,381.15
  4. Step 4: Simplify right side
    57,820.05x = 1,594,203,481.00
  5. Step 5: Solve for x
    x = 1,594,203,481.00/57,820.05
  6. Step 6: Final answer
    x = 27,571.81

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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.