Home / 86,819.20-130,228.80-24,489.72

Finding the Fourth Proportional to 86,819.20, 130,228.80 and 24,489.72

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Solution

The fourth proportional to 86,819.20, 130,228.80 and 24,489.72 is: 36,734.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,819.20 : 130,228.80 = 24,489.72 : x
  2. Step 2: Convert to fraction form
    86,819.20/130,228.80 = 24,489.72/x
  3. Step 3: Cross multiply
    86,819.20x = 130,228.80 × 24,489.72
  4. Step 4: Simplify right side
    86,819.20x = 3,189,266,847.94
  5. Step 5: Solve for x
    x = 3,189,266,847.94/86,819.20
  6. Step 6: Final answer
    x = 36,734.58

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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.