Home / 80,708.94-111,336.84-47,155.50

Finding the Fourth Proportional to 80,708.94, 111,336.84 and 47,155.50

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Solution

The fourth proportional to 80,708.94, 111,336.84 and 47,155.50 is: 65,050.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,708.94 : 111,336.84 = 47,155.50 : x
  2. Step 2: Convert to fraction form
    80,708.94/111,336.84 = 47,155.50/x
  3. Step 3: Cross multiply
    80,708.94x = 111,336.84 × 47,155.50
  4. Step 4: Simplify right side
    80,708.94x = 5,250,144,358.62
  5. Step 5: Solve for x
    x = 5,250,144,358.62/80,708.94
  6. Step 6: Final answer
    x = 65,050.34

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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.