Home / 87,423.28-131,067.72-45,258.16

Finding the Fourth Proportional to 87,423.28, 131,067.72 and 45,258.16

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Solution

The fourth proportional to 87,423.28, 131,067.72 and 45,258.16 is: 67,852.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,423.28 : 131,067.72 = 45,258.16 : x
  2. Step 2: Convert to fraction form
    87,423.28/131,067.72 = 45,258.16/x
  3. Step 3: Cross multiply
    87,423.28x = 131,067.72 × 45,258.16
  4. Step 4: Simplify right side
    87,423.28x = 5,931,883,842.60
  5. Step 5: Solve for x
    x = 5,931,883,842.60/87,423.28
  6. Step 6: Final answer
    x = 67,852.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.