Home / 90,725.05-125,152.66-53,910.35

Finding the Fourth Proportional to 90,725.05, 125,152.66 and 53,910.35

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Solution

The fourth proportional to 90,725.05, 125,152.66 and 53,910.35 is: 74,367.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,725.05 : 125,152.66 = 53,910.35 : x
  2. Step 2: Convert to fraction form
    90,725.05/125,152.66 = 53,910.35/x
  3. Step 3: Cross multiply
    90,725.05x = 125,152.66 × 53,910.35
  4. Step 4: Simplify right side
    90,725.05x = 6,747,023,704.03
  5. Step 5: Solve for x
    x = 6,747,023,704.03/90,725.05
  6. Step 6: Final answer
    x = 74,367.81

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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.