Home / 86,793.85-130,201.20-30,622.35

Finding the Fourth Proportional to 86,793.85, 130,201.20 and 30,622.35

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Solution

The fourth proportional to 86,793.85, 130,201.20 and 30,622.35 is: 45,937.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,793.85 : 130,201.20 = 30,622.35 : x
  2. Step 2: Convert to fraction form
    86,793.85/130,201.20 = 30,622.35/x
  3. Step 3: Cross multiply
    86,793.85x = 130,201.20 × 30,622.35
  4. Step 4: Simplify right side
    86,793.85x = 3,987,067,118.95
  5. Step 5: Solve for x
    x = 3,987,067,118.95/86,793.85
  6. Step 6: Final answer
    x = 45,937.21

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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.