Home / 87,089.64-120,183.14-47,345.64

Finding the Fourth Proportional to 87,089.64, 120,183.14 and 47,345.64

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Solution

The fourth proportional to 87,089.64, 120,183.14 and 47,345.64 is: 65,336.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,089.64 : 120,183.14 = 47,345.64 : x
  2. Step 2: Convert to fraction form
    87,089.64/120,183.14 = 47,345.64/x
  3. Step 3: Cross multiply
    87,089.64x = 120,183.14 × 47,345.64
  4. Step 4: Simplify right side
    87,089.64x = 5,690,147,680.51
  5. Step 5: Solve for x
    x = 5,690,147,680.51/87,089.64
  6. Step 6: Final answer
    x = 65,336.68

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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.