Home / 86,627.20-129,843.60-49,205.20

Finding the Fourth Proportional to 86,627.20, 129,843.60 and 49,205.20

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Solution

The fourth proportional to 86,627.20, 129,843.60 and 49,205.20 is: 73,752.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,627.20 : 129,843.60 = 49,205.20 : x
  2. Step 2: Convert to fraction form
    86,627.20/129,843.60 = 49,205.20/x
  3. Step 3: Cross multiply
    86,627.20x = 129,843.60 × 49,205.20
  4. Step 4: Simplify right side
    86,627.20x = 6,388,980,306.72
  5. Step 5: Solve for x
    x = 6,388,980,306.72/86,627.20
  6. Step 6: Final answer
    x = 73,752.59

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1.5x scale

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.