Home / 91,721.87-137,568.07-25,146.45

Finding the Fourth Proportional to 91,721.87, 137,568.07 and 25,146.45

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Solution

The fourth proportional to 91,721.87, 137,568.07 and 25,146.45 is: 37,715.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,721.87 : 137,568.07 = 25,146.45 : x
  2. Step 2: Convert to fraction form
    91,721.87/137,568.07 = 25,146.45/x
  3. Step 3: Cross multiply
    91,721.87x = 137,568.07 × 25,146.45
  4. Step 4: Simplify right side
    91,721.87x = 3,459,348,625.28
  5. Step 5: Solve for x
    x = 3,459,348,625.28/91,721.87
  6. Step 6: Final answer
    x = 37,715.64

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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.