Home / 87,897.60-131,846.40-28,735.20

Finding the Fourth Proportional to 87,897.60, 131,846.40 and 28,735.20

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Solution

The fourth proportional to 87,897.60, 131,846.40 and 28,735.20 is: 43,102.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,897.60 : 131,846.40 = 28,735.20 : x
  2. Step 2: Convert to fraction form
    87,897.60/131,846.40 = 28,735.20/x
  3. Step 3: Cross multiply
    87,897.60x = 131,846.40 × 28,735.20
  4. Step 4: Simplify right side
    87,897.60x = 3,788,632,673.28
  5. Step 5: Solve for x
    x = 3,788,632,673.28/87,897.60
  6. Step 6: Final answer
    x = 43,102.80

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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.