Home / 89,945.52-124,121.54-49,108.88

Finding the Fourth Proportional to 89,945.52, 124,121.54 and 49,108.88

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Solution

The fourth proportional to 89,945.52, 124,121.54 and 49,108.88 is: 67,768.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,945.52 : 124,121.54 = 49,108.88 : x
  2. Step 2: Convert to fraction form
    89,945.52/124,121.54 = 49,108.88/x
  3. Step 3: Cross multiply
    89,945.52x = 124,121.54 × 49,108.88
  4. Step 4: Simplify right side
    89,945.52x = 6,095,469,813.28
  5. Step 5: Solve for x
    x = 6,095,469,813.28/89,945.52
  6. Step 6: Final answer
    x = 67,768.46

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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.