Home / 50,205.05-69,355.06-40,120.28

Finding the Fourth Proportional to 50,205.05, 69,355.06 and 40,120.28

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Solution

The fourth proportional to 50,205.05, 69,355.06 and 40,120.28 is: 55,423.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,205.05 : 69,355.06 = 40,120.28 : x
  2. Step 2: Convert to fraction form
    50,205.05/69,355.06 = 40,120.28/x
  3. Step 3: Cross multiply
    50,205.05x = 69,355.06 × 40,120.28
  4. Step 4: Simplify right side
    50,205.05x = 2,782,544,426.62
  5. Step 5: Solve for x
    x = 2,782,544,426.62/50,205.05
  6. Step 6: Final answer
    x = 55,423.60

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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.