Home / 82,579.38-113,896.08-55,679.28

Finding the Fourth Proportional to 82,579.38, 113,896.08 and 55,679.28

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Solution

The fourth proportional to 82,579.38, 113,896.08 and 55,679.28 is: 76,794.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,579.38 : 113,896.08 = 55,679.28 : x
  2. Step 2: Convert to fraction form
    82,579.38/113,896.08 = 55,679.28/x
  3. Step 3: Cross multiply
    82,579.38x = 113,896.08 × 55,679.28
  4. Step 4: Simplify right side
    82,579.38x = 6,341,651,729.22
  5. Step 5: Solve for x
    x = 6,341,651,729.22/82,579.38
  6. Step 6: Final answer
    x = 76,794.62

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1.5x scale

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.