Home / 87,267.23-120,415.62-49,019.43

Finding the Fourth Proportional to 87,267.23, 120,415.62 and 49,019.43

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Solution

The fourth proportional to 87,267.23, 120,415.62 and 49,019.43 is: 67,639.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,267.23 : 120,415.62 = 49,019.43 : x
  2. Step 2: Convert to fraction form
    87,267.23/120,415.62 = 49,019.43/x
  3. Step 3: Cross multiply
    87,267.23x = 120,415.62 × 49,019.43
  4. Step 4: Simplify right side
    87,267.23x = 5,902,705,055.50
  5. Step 5: Solve for x
    x = 5,902,705,055.50/87,267.23
  6. Step 6: Final answer
    x = 67,639.43

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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.