Home / 87,074.18-120,175.50-53,102.37

Finding the Fourth Proportional to 87,074.18, 120,175.50 and 53,102.37

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Solution

The fourth proportional to 87,074.18, 120,175.50 and 53,102.37 is: 73,289.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,074.18 : 120,175.50 = 53,102.37 : x
  2. Step 2: Convert to fraction form
    87,074.18/120,175.50 = 53,102.37/x
  3. Step 3: Cross multiply
    87,074.18x = 120,175.50 × 53,102.37
  4. Step 4: Simplify right side
    87,074.18x = 6,381,603,865.94
  5. Step 5: Solve for x
    x = 6,381,603,865.94/87,074.18
  6. Step 6: Final answer
    x = 73,289.28

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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.