Home / 87,880.36-132,509.96-80,532.04

Finding the Fourth Proportional to 87,880.36, 132,509.96 and 80,532.04

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Solution

The fourth proportional to 87,880.36, 132,509.96 and 80,532.04 is: 121,429.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,880.36 : 132,509.96 = 80,532.04 : x
  2. Step 2: Convert to fraction form
    87,880.36/132,509.96 = 80,532.04/x
  3. Step 3: Cross multiply
    87,880.36x = 132,509.96 × 80,532.04
  4. Step 4: Simplify right side
    87,880.36x = 10,671,297,399.12
  5. Step 5: Solve for x
    x = 10,671,297,399.12/87,880.36
  6. Step 6: Final answer
    x = 121,429.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.