Home / 90,763.38-125,251.29-49,369.32

Finding the Fourth Proportional to 90,763.38, 125,251.29 and 49,369.32

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Solution

The fourth proportional to 90,763.38, 125,251.29 and 49,369.32 is: 68,128.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,763.38 : 125,251.29 = 49,369.32 : x
  2. Step 2: Convert to fraction form
    90,763.38/125,251.29 = 49,369.32/x
  3. Step 3: Cross multiply
    90,763.38x = 125,251.29 × 49,369.32
  4. Step 4: Simplify right side
    90,763.38x = 6,183,571,016.42
  5. Step 5: Solve for x
    x = 6,183,571,016.42/90,763.38
  6. Step 6: Final answer
    x = 68,128.48

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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.