Home / 86,807.20-119,793.36-49,081.60

Finding the Fourth Proportional to 86,807.20, 119,793.36 and 49,081.60

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Solution

The fourth proportional to 86,807.20, 119,793.36 and 49,081.60 is: 67,732.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,807.20 : 119,793.36 = 49,081.60 : x
  2. Step 2: Convert to fraction form
    86,807.20/119,793.36 = 49,081.60/x
  3. Step 3: Cross multiply
    86,807.20x = 119,793.36 × 49,081.60
  4. Step 4: Simplify right side
    86,807.20x = 5,879,649,778.18
  5. Step 5: Solve for x
    x = 5,879,649,778.18/86,807.20
  6. Step 6: Final answer
    x = 67,732.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.