Home / 80,656.60-111,263.46-47,932.48

Finding the Fourth Proportional to 80,656.60, 111,263.46 and 47,932.48

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Solution

The fourth proportional to 80,656.60, 111,263.46 and 47,932.48 is: 66,121.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,656.60 : 111,263.46 = 47,932.48 : x
  2. Step 2: Convert to fraction form
    80,656.60/111,263.46 = 47,932.48/x
  3. Step 3: Cross multiply
    80,656.60x = 111,263.46 × 47,932.48
  4. Step 4: Simplify right side
    80,656.60x = 5,333,133,571.18
  5. Step 5: Solve for x
    x = 5,333,133,571.18/80,656.60
  6. Step 6: Final answer
    x = 66,121.48

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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.