Home / 80,928.45-111,678.48-50,730.03

Finding the Fourth Proportional to 80,928.45, 111,678.48 and 50,730.03

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Solution

The fourth proportional to 80,928.45, 111,678.48 and 50,730.03 is: 70,005.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,928.45 : 111,678.48 = 50,730.03 : x
  2. Step 2: Convert to fraction form
    80,928.45/111,678.48 = 50,730.03/x
  3. Step 3: Cross multiply
    80,928.45x = 111,678.48 × 50,730.03
  4. Step 4: Simplify right side
    80,928.45x = 5,665,452,640.75
  5. Step 5: Solve for x
    x = 5,665,452,640.75/80,928.45
  6. Step 6: Final answer
    x = 70,005.70

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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.