Home / 87,623.39-120,920.13-49,897.64

Finding the Fourth Proportional to 87,623.39, 120,920.13 and 49,897.64

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Solution

The fourth proportional to 87,623.39, 120,920.13 and 49,897.64 is: 68,858.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,623.39 : 120,920.13 = 49,897.64 : x
  2. Step 2: Convert to fraction form
    87,623.39/120,920.13 = 49,897.64/x
  3. Step 3: Cross multiply
    87,623.39x = 120,920.13 × 49,897.64
  4. Step 4: Simplify right side
    87,623.39x = 6,033,628,510.89
  5. Step 5: Solve for x
    x = 6,033,628,510.89/87,623.39
  6. Step 6: Final answer
    x = 68,858.66

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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.