Home / 75,969.49-113,665.09-45,872.95

Finding the Fourth Proportional to 75,969.49, 113,665.09 and 45,872.95

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Solution

The fourth proportional to 75,969.49, 113,665.09 and 45,872.95 is: 68,634.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,969.49 : 113,665.09 = 45,872.95 : x
  2. Step 2: Convert to fraction form
    75,969.49/113,665.09 = 45,872.95/x
  3. Step 3: Cross multiply
    75,969.49x = 113,665.09 × 45,872.95
  4. Step 4: Simplify right side
    75,969.49x = 5,214,152,990.32
  5. Step 5: Solve for x
    x = 5,214,152,990.32/75,969.49
  6. Step 6: Final answer
    x = 68,634.83

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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.