Home / 87,392.76-120,583.90-51,087.16

Finding the Fourth Proportional to 87,392.76, 120,583.90 and 51,087.16

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Solution

The fourth proportional to 87,392.76, 120,583.90 and 51,087.16 is: 70,489.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,392.76 : 120,583.90 = 51,087.16 : x
  2. Step 2: Convert to fraction form
    87,392.76/120,583.90 = 51,087.16/x
  3. Step 3: Cross multiply
    87,392.76x = 120,583.90 × 51,087.16
  4. Step 4: Simplify right side
    87,392.76x = 6,160,288,992.72
  5. Step 5: Solve for x
    x = 6,160,288,992.72/87,392.76
  6. Step 6: Final answer
    x = 70,489.69

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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.