Home / 91,671.11-137,506.78-25,111.81

Finding the Fourth Proportional to 91,671.11, 137,506.78 and 25,111.81

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Solution

The fourth proportional to 91,671.11, 137,506.78 and 25,111.81 is: 37,667.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,671.11 : 137,506.78 = 25,111.81 : x
  2. Step 2: Convert to fraction form
    91,671.11/137,506.78 = 25,111.81/x
  3. Step 3: Cross multiply
    91,671.11x = 137,506.78 × 25,111.81
  4. Step 4: Simplify right side
    91,671.11x = 3,453,044,195.09
  5. Step 5: Solve for x
    x = 3,453,044,195.09/91,671.11
  6. Step 6: Final answer
    x = 37,667.75

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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.