Home / 91,682.26-137,681.94-54,476.12

Finding the Fourth Proportional to 91,682.26, 137,681.94 and 54,476.12

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Solution

The fourth proportional to 91,682.26, 137,681.94 and 54,476.12 is: 81,808.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,682.26 : 137,681.94 = 54,476.12 : x
  2. Step 2: Convert to fraction form
    91,682.26/137,681.94 = 54,476.12/x
  3. Step 3: Cross multiply
    91,682.26x = 137,681.94 × 54,476.12
  4. Step 4: Simplify right side
    91,682.26x = 7,500,377,885.27
  5. Step 5: Solve for x
    x = 7,500,377,885.27/91,682.26
  6. Step 6: Final answer
    x = 81,808.39

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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.