Home / 83,120.28-114,705.36-45,394.50

Finding the Fourth Proportional to 83,120.28, 114,705.36 and 45,394.50

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Solution

The fourth proportional to 83,120.28, 114,705.36 and 45,394.50 is: 62,644.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,120.28 : 114,705.36 = 45,394.50 : x
  2. Step 2: Convert to fraction form
    83,120.28/114,705.36 = 45,394.50/x
  3. Step 3: Cross multiply
    83,120.28x = 114,705.36 × 45,394.50
  4. Step 4: Simplify right side
    83,120.28x = 5,206,992,464.52
  5. Step 5: Solve for x
    x = 5,206,992,464.52/83,120.28
  6. Step 6: Final answer
    x = 62,644.07

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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.