Home / 87,890.08-131,852.08-28,709.84

Finding the Fourth Proportional to 87,890.08, 131,852.08 and 28,709.84

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Solution

The fourth proportional to 87,890.08, 131,852.08 and 28,709.84 is: 43,070.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,890.08 : 131,852.08 = 28,709.84 : x
  2. Step 2: Convert to fraction form
    87,890.08/131,852.08 = 28,709.84/x
  3. Step 3: Cross multiply
    87,890.08x = 131,852.08 × 28,709.84
  4. Step 4: Simplify right side
    87,890.08x = 3,785,452,120.47
  5. Step 5: Solve for x
    x = 3,785,452,120.47/87,890.08
  6. Step 6: Final answer
    x = 43,070.30

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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.