Home / 87,174.64-120,299.88-51,366.16

Finding the Fourth Proportional to 87,174.64, 120,299.88 and 51,366.16

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Solution

The fourth proportional to 87,174.64, 120,299.88 and 51,366.16 is: 70,884.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,174.64 : 120,299.88 = 51,366.16 : x
  2. Step 2: Convert to fraction form
    87,174.64/120,299.88 = 51,366.16/x
  3. Step 3: Cross multiply
    87,174.64x = 120,299.88 × 51,366.16
  4. Step 4: Simplify right side
    87,174.64x = 6,179,342,884.06
  5. Step 5: Solve for x
    x = 6,179,342,884.06/87,174.64
  6. Step 6: Final answer
    x = 70,884.64

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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.