Home / 80,091.24-120,209.62-42,683.28

Finding the Fourth Proportional to 80,091.24, 120,209.62 and 42,683.28

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Solution

The fourth proportional to 80,091.24, 120,209.62 and 42,683.28 is: 64,063.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,091.24 : 120,209.62 = 42,683.28 : x
  2. Step 2: Convert to fraction form
    80,091.24/120,209.62 = 42,683.28/x
  3. Step 3: Cross multiply
    80,091.24x = 120,209.62 × 42,683.28
  4. Step 4: Simplify right side
    80,091.24x = 5,130,940,869.15
  5. Step 5: Solve for x
    x = 5,130,940,869.15/80,091.24
  6. Step 6: Final answer
    x = 64,063.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.