Home / 87,622.40-120,918.78-49,896.66

Finding the Fourth Proportional to 87,622.40, 120,918.78 and 49,896.66

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Solution

The fourth proportional to 87,622.40, 120,918.78 and 49,896.66 is: 68,857.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,622.40 : 120,918.78 = 49,896.66 : x
  2. Step 2: Convert to fraction form
    87,622.40/120,918.78 = 49,896.66/x
  3. Step 3: Cross multiply
    87,622.40x = 120,918.78 × 49,896.66
  4. Step 4: Simplify right side
    87,622.40x = 6,033,443,253.27
  5. Step 5: Solve for x
    x = 6,033,443,253.27/87,622.40
  6. Step 6: Final answer
    x = 68,857.32

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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.