Home / 87,389.32-120,607.52-49,669.24

Finding the Fourth Proportional to 87,389.32, 120,607.52 and 49,669.24

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Solution

The fourth proportional to 87,389.32, 120,607.52 and 49,669.24 is: 68,549.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,389.32 : 120,607.52 = 49,669.24 : x
  2. Step 2: Convert to fraction form
    87,389.32/120,607.52 = 49,669.24/x
  3. Step 3: Cross multiply
    87,389.32x = 120,607.52 × 49,669.24
  4. Step 4: Simplify right side
    87,389.32x = 5,990,483,856.68
  5. Step 5: Solve for x
    x = 5,990,483,856.68/87,389.32
  6. Step 6: Final answer
    x = 68,549.38

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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.