Home / 87,684.17-120,975.61-53,657.15

Finding the Fourth Proportional to 87,684.17, 120,975.61 and 53,657.15

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Solution

The fourth proportional to 87,684.17, 120,975.61 and 53,657.15 is: 74,029.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,684.17 : 120,975.61 = 53,657.15 : x
  2. Step 2: Convert to fraction form
    87,684.17/120,975.61 = 53,657.15/x
  3. Step 3: Cross multiply
    87,684.17x = 120,975.61 × 53,657.15
  4. Step 4: Simplify right side
    87,684.17x = 6,491,206,183.83
  5. Step 5: Solve for x
    x = 6,491,206,183.83/87,684.17
  6. Step 6: Final answer
    x = 74,029.40

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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.