Home / 99,936.45-137,912.27-57,492.09

Finding the Fourth Proportional to 99,936.45, 137,912.27 and 57,492.09

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Solution

The fourth proportional to 99,936.45, 137,912.27 and 57,492.09 is: 79,339.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,936.45 : 137,912.27 = 57,492.09 : x
  2. Step 2: Convert to fraction form
    99,936.45/137,912.27 = 57,492.09/x
  3. Step 3: Cross multiply
    99,936.45x = 137,912.27 × 57,492.09
  4. Step 4: Simplify right side
    99,936.45x = 7,928,864,351.48
  5. Step 5: Solve for x
    x = 7,928,864,351.48/99,936.45
  6. Step 6: Final answer
    x = 79,339.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.