Home / 90,434.96-124,800-50,149.04

Finding the Fourth Proportional to 90,434.96, 124,800 and 50,149.04

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Solution

The fourth proportional to 90,434.96, 124,800 and 50,149.04 is: 69,205.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,434.96 : 124,800 = 50,149.04 : x
  2. Step 2: Convert to fraction form
    90,434.96/124,800 = 50,149.04/x
  3. Step 3: Cross multiply
    90,434.96x = 124,800 × 50,149.04
  4. Step 4: Simplify right side
    90,434.96x = 6,258,600,192
  5. Step 5: Solve for x
    x = 6,258,600,192/90,434.96
  6. Step 6: Final answer
    x = 69,205.54

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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.