Home / 87,256.32-120,410.38-53,321.57

Finding the Fourth Proportional to 87,256.32, 120,410.38 and 53,321.57

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Solution

The fourth proportional to 87,256.32, 120,410.38 and 53,321.57 is: 73,581.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,256.32 : 120,410.38 = 53,321.57 : x
  2. Step 2: Convert to fraction form
    87,256.32/120,410.38 = 53,321.57/x
  3. Step 3: Cross multiply
    87,256.32x = 120,410.38 × 53,321.57
  4. Step 4: Simplify right side
    87,256.32x = 6,420,470,239.29
  5. Step 5: Solve for x
    x = 6,420,470,239.29/87,256.32
  6. Step 6: Final answer
    x = 73,581.73

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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.