Home / 81,097.49-121,646.25-24,172.28

Finding the Fourth Proportional to 81,097.49, 121,646.25 and 24,172.28

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Solution

The fourth proportional to 81,097.49, 121,646.25 and 24,172.28 is: 36,258.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,097.49 : 121,646.25 = 24,172.28 : x
  2. Step 2: Convert to fraction form
    81,097.49/121,646.25 = 24,172.28/x
  3. Step 3: Cross multiply
    81,097.49x = 121,646.25 × 24,172.28
  4. Step 4: Simplify right side
    81,097.49x = 2,940,467,520.07
  5. Step 5: Solve for x
    x = 2,940,467,520.07/81,097.49
  6. Step 6: Final answer
    x = 36,258.43

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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.