Home / 81,084.26-111,907.49-45,276.59

Finding the Fourth Proportional to 81,084.26, 111,907.49 and 45,276.59

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Solution

The fourth proportional to 81,084.26, 111,907.49 and 45,276.59 is: 62,487.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,084.26 : 111,907.49 = 45,276.59 : x
  2. Step 2: Convert to fraction form
    81,084.26/111,907.49 = 45,276.59/x
  3. Step 3: Cross multiply
    81,084.26x = 111,907.49 × 45,276.59
  4. Step 4: Simplify right side
    81,084.26x = 5,066,789,542.66
  5. Step 5: Solve for x
    x = 5,066,789,542.66/81,084.26
  6. Step 6: Final answer
    x = 62,487.95

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1.5x scale

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.