Home / 81,265.63-112,158.54-49,428.37

Finding the Fourth Proportional to 81,265.63, 112,158.54 and 49,428.37

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Solution

The fourth proportional to 81,265.63, 112,158.54 and 49,428.37 is: 68,218.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,265.63 : 112,158.54 = 49,428.37 : x
  2. Step 2: Convert to fraction form
    81,265.63/112,158.54 = 49,428.37/x
  3. Step 3: Cross multiply
    81,265.63x = 112,158.54 × 49,428.37
  4. Step 4: Simplify right side
    81,265.63x = 5,543,813,813.78
  5. Step 5: Solve for x
    x = 5,543,813,813.78/81,265.63
  6. Step 6: Final answer
    x = 68,218.43

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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.