Home / 82,561.05-113,969.13-55,739.89

Finding the Fourth Proportional to 82,561.05, 113,969.13 and 55,739.89

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Solution

The fourth proportional to 82,561.05, 113,969.13 and 55,739.89 is: 76,944.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,561.05 : 113,969.13 = 55,739.89 : x
  2. Step 2: Convert to fraction form
    82,561.05/113,969.13 = 55,739.89/x
  3. Step 3: Cross multiply
    82,561.05x = 113,969.13 × 55,739.89
  4. Step 4: Simplify right side
    82,561.05x = 6,352,625,921.05
  5. Step 5: Solve for x
    x = 6,352,625,921.05/82,561.05
  6. Step 6: Final answer
    x = 76,944.59

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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.