Home / 83,920.94-115,813.32-45,682.96

Finding the Fourth Proportional to 83,920.94, 115,813.32 and 45,682.96

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Solution

The fourth proportional to 83,920.94, 115,813.32 and 45,682.96 is: 63,043.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,920.94 : 115,813.32 = 45,682.96 : x
  2. Step 2: Convert to fraction form
    83,920.94/115,813.32 = 45,682.96/x
  3. Step 3: Cross multiply
    83,920.94x = 115,813.32 × 45,682.96
  4. Step 4: Simplify right side
    83,920.94x = 5,290,695,475.54
  5. Step 5: Solve for x
    x = 5,290,695,475.54/83,920.94
  6. Step 6: Final answer
    x = 63,043.81

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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.