Home / 80,921.36-111,671.49-45,110.60

Finding the Fourth Proportional to 80,921.36, 111,671.49 and 45,110.60

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Solution

The fourth proportional to 80,921.36, 111,671.49 and 45,110.60 is: 62,252.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,921.36 : 111,671.49 = 45,110.60 : x
  2. Step 2: Convert to fraction form
    80,921.36/111,671.49 = 45,110.60/x
  3. Step 3: Cross multiply
    80,921.36x = 111,671.49 × 45,110.60
  4. Step 4: Simplify right side
    80,921.36x = 5,037,567,358.44
  5. Step 5: Solve for x
    x = 5,037,567,358.44/80,921.36
  6. Step 6: Final answer
    x = 62,252.63

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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.