Home / 81,268.14-121,913.91-25,113.17

Finding the Fourth Proportional to 81,268.14, 121,913.91 and 25,113.17

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Solution

The fourth proportional to 81,268.14, 121,913.91 and 25,113.17 is: 37,673.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,268.14 : 121,913.91 = 25,113.17 : x
  2. Step 2: Convert to fraction form
    81,268.14/121,913.91 = 25,113.17/x
  3. Step 3: Cross multiply
    81,268.14x = 121,913.91 × 25,113.17
  4. Step 4: Simplify right side
    81,268.14x = 3,061,645,051.98
  5. Step 5: Solve for x
    x = 3,061,645,051.98/81,268.14
  6. Step 6: Final answer
    x = 37,673.37

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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.