Home / 91,976.87-137,901.65-46,910.79

Finding the Fourth Proportional to 91,976.87, 137,901.65 and 46,910.79

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Solution

The fourth proportional to 91,976.87, 137,901.65 and 46,910.79 is: 70,333.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,976.87 : 137,901.65 = 46,910.79 : x
  2. Step 2: Convert to fraction form
    91,976.87/137,901.65 = 46,910.79/x
  3. Step 3: Cross multiply
    91,976.87x = 137,901.65 × 46,910.79
  4. Step 4: Simplify right side
    91,976.87x = 6,469,075,109.25
  5. Step 5: Solve for x
    x = 6,469,075,109.25/91,976.87
  6. Step 6: Final answer
    x = 70,333.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.