Home / 90,121.06-124,356.21-49,829.38

Finding the Fourth Proportional to 90,121.06, 124,356.21 and 49,829.38

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Solution

The fourth proportional to 90,121.06, 124,356.21 and 49,829.38 is: 68,758.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,121.06 : 124,356.21 = 49,829.38 : x
  2. Step 2: Convert to fraction form
    90,121.06/124,356.21 = 49,829.38/x
  3. Step 3: Cross multiply
    90,121.06x = 124,356.21 × 49,829.38
  4. Step 4: Simplify right side
    90,121.06x = 6,196,592,843.45
  5. Step 5: Solve for x
    x = 6,196,592,843.45/90,121.06
  6. Step 6: Final answer
    x = 68,758.54

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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.