Home / 87,165.90-120,314.70-51,367.44

Finding the Fourth Proportional to 87,165.90, 120,314.70 and 51,367.44

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Solution

The fourth proportional to 87,165.90, 120,314.70 and 51,367.44 is: 70,902.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,165.90 : 120,314.70 = 51,367.44 : x
  2. Step 2: Convert to fraction form
    87,165.90/120,314.70 = 51,367.44/x
  3. Step 3: Cross multiply
    87,165.90x = 120,314.70 × 51,367.44
  4. Step 4: Simplify right side
    87,165.90x = 6,180,258,133.37
  5. Step 5: Solve for x
    x = 6,180,258,133.37/87,165.90
  6. Step 6: Final answer
    x = 70,902.25

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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.