Home / 80,867.48-111,606.99-49,036.28

Finding the Fourth Proportional to 80,867.48, 111,606.99 and 49,036.28

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Solution

The fourth proportional to 80,867.48, 111,606.99 and 49,036.28 is: 67,676.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,867.48 : 111,606.99 = 49,036.28 : x
  2. Step 2: Convert to fraction form
    80,867.48/111,606.99 = 49,036.28/x
  3. Step 3: Cross multiply
    80,867.48x = 111,606.99 × 49,036.28
  4. Step 4: Simplify right side
    80,867.48x = 5,472,791,611.60
  5. Step 5: Solve for x
    x = 5,472,791,611.60/80,867.48
  6. Step 6: Final answer
    x = 67,676.05

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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.