Home / 90,120.06-124,354.83-49,828.38

Finding the Fourth Proportional to 90,120.06, 124,354.83 and 49,828.38

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Solution

The fourth proportional to 90,120.06, 124,354.83 and 49,828.38 is: 68,757.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,120.06 : 124,354.83 = 49,828.38 : x
  2. Step 2: Convert to fraction form
    90,120.06/124,354.83 = 49,828.38/x
  3. Step 3: Cross multiply
    90,120.06x = 124,354.83 × 49,828.38
  4. Step 4: Simplify right side
    90,120.06x = 6,196,399,724.08
  5. Step 5: Solve for x
    x = 6,196,399,724.08/90,120.06
  6. Step 6: Final answer
    x = 68,757.16

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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.