Home / 90,834.38-125,351.44-51,090.38

Finding the Fourth Proportional to 90,834.38, 125,351.44 and 51,090.38

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Solution

The fourth proportional to 90,834.38, 125,351.44 and 51,090.38 is: 70,504.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,834.38 : 125,351.44 = 51,090.38 : x
  2. Step 2: Convert to fraction form
    90,834.38/125,351.44 = 51,090.38/x
  3. Step 3: Cross multiply
    90,834.38x = 125,351.44 × 51,090.38
  4. Step 4: Simplify right side
    90,834.38x = 6,404,251,948.66
  5. Step 5: Solve for x
    x = 6,404,251,948.66/90,834.38
  6. Step 6: Final answer
    x = 70,504.72

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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.