Home / 91,723.68-137,625-49,633.34

Finding the Fourth Proportional to 91,723.68, 137,625 and 49,633.34

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Solution

The fourth proportional to 91,723.68, 137,625 and 49,633.34 is: 74,471.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,723.68 : 137,625 = 49,633.34 : x
  2. Step 2: Convert to fraction form
    91,723.68/137,625 = 49,633.34/x
  3. Step 3: Cross multiply
    91,723.68x = 137,625 × 49,633.34
  4. Step 4: Simplify right side
    91,723.68x = 6,830,787,729.38
  5. Step 5: Solve for x
    x = 6,830,787,729.38/91,723.68
  6. Step 6: Final answer
    x = 74,471.37

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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.