Home / 80,653.14-111,285.03-47,112.66

Finding the Fourth Proportional to 80,653.14, 111,285.03 and 47,112.66

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Solution

The fourth proportional to 80,653.14, 111,285.03 and 47,112.66 is: 65,005.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,653.14 : 111,285.03 = 47,112.66 : x
  2. Step 2: Convert to fraction form
    80,653.14/111,285.03 = 47,112.66/x
  3. Step 3: Cross multiply
    80,653.14x = 111,285.03 × 47,112.66
  4. Step 4: Simplify right side
    80,653.14x = 5,242,933,781.48
  5. Step 5: Solve for x
    x = 5,242,933,781.48/80,653.14
  6. Step 6: Final answer
    x = 65,005.95

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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.