Home / 81,269.14-121,915.41-25,114.17

Finding the Fourth Proportional to 81,269.14, 121,915.41 and 25,114.17

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Solution

The fourth proportional to 81,269.14, 121,915.41 and 25,114.17 is: 37,674.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,269.14 : 121,915.41 = 25,114.17 : x
  2. Step 2: Convert to fraction form
    81,269.14/121,915.41 = 25,114.17/x
  3. Step 3: Cross multiply
    81,269.14x = 121,915.41 × 25,114.17
  4. Step 4: Simplify right side
    81,269.14x = 3,061,804,332.36
  5. Step 5: Solve for x
    x = 3,061,804,332.36/81,269.14
  6. Step 6: Final answer
    x = 37,674.87

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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.