Home / 87,989.06-132,008.16-28,866.32

Finding the Fourth Proportional to 87,989.06, 132,008.16 and 28,866.32

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Solution

The fourth proportional to 87,989.06, 132,008.16 and 28,866.32 is: 43,307.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,989.06 : 132,008.16 = 28,866.32 : x
  2. Step 2: Convert to fraction form
    87,989.06/132,008.16 = 28,866.32/x
  3. Step 3: Cross multiply
    87,989.06x = 132,008.16 × 28,866.32
  4. Step 4: Simplify right side
    87,989.06x = 3,810,589,789.17
  5. Step 5: Solve for x
    x = 3,810,589,789.17/87,989.06
  6. Step 6: Final answer
    x = 43,307.54

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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.