Home / 99,939.51-137,918.22-59,645.43

Finding the Fourth Proportional to 99,939.51, 137,918.22 and 59,645.43

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Solution

The fourth proportional to 99,939.51, 137,918.22 and 59,645.43 is: 82,311.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,939.51 : 137,918.22 = 59,645.43 : x
  2. Step 2: Convert to fraction form
    99,939.51/137,918.22 = 59,645.43/x
  3. Step 3: Cross multiply
    99,939.51x = 137,918.22 × 59,645.43
  4. Step 4: Simplify right side
    99,939.51x = 8,226,191,536.73
  5. Step 5: Solve for x
    x = 8,226,191,536.73/99,939.51
  6. Step 6: Final answer
    x = 82,311.71

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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.