Home / 80,723.52-111,395.52-47,188.80

Finding the Fourth Proportional to 80,723.52, 111,395.52 and 47,188.80

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Solution

The fourth proportional to 80,723.52, 111,395.52 and 47,188.80 is: 65,118.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,723.52 : 111,395.52 = 47,188.80 : x
  2. Step 2: Convert to fraction form
    80,723.52/111,395.52 = 47,188.80/x
  3. Step 3: Cross multiply
    80,723.52x = 111,395.52 × 47,188.80
  4. Step 4: Simplify right side
    80,723.52x = 5,256,620,914.18
  5. Step 5: Solve for x
    x = 5,256,620,914.18/80,723.52
  6. Step 6: Final answer
    x = 65,118.83

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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.