Home / 91,191.49-125,839.04-50,907.81

Finding the Fourth Proportional to 91,191.49, 125,839.04 and 50,907.81

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Solution

The fourth proportional to 91,191.49, 125,839.04 and 50,907.81 is: 70,249.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,191.49 : 125,839.04 = 50,907.81 : x
  2. Step 2: Convert to fraction form
    91,191.49/125,839.04 = 50,907.81/x
  3. Step 3: Cross multiply
    91,191.49x = 125,839.04 × 50,907.81
  4. Step 4: Simplify right side
    91,191.49x = 6,406,189,584.15
  5. Step 5: Solve for x
    x = 6,406,189,584.15/91,191.49
  6. Step 6: Final answer
    x = 70,249.86

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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.