Home / 90,011.36-124,222.94-49,728.64

Finding the Fourth Proportional to 90,011.36, 124,222.94 and 49,728.64

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Solution

The fourth proportional to 90,011.36, 124,222.94 and 49,728.64 is: 68,629.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,011.36 : 124,222.94 = 49,728.64 : x
  2. Step 2: Convert to fraction form
    90,011.36/124,222.94 = 49,728.64/x
  3. Step 3: Cross multiply
    90,011.36x = 124,222.94 × 49,728.64
  4. Step 4: Simplify right side
    90,011.36x = 6,177,437,863.00
  5. Step 5: Solve for x
    x = 6,177,437,863.00/90,011.36
  6. Step 6: Final answer
    x = 68,629.54

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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.