Home / 87,860.16-131,792.40-28,749.60

Finding the Fourth Proportional to 87,860.16, 131,792.40 and 28,749.60

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Solution

The fourth proportional to 87,860.16, 131,792.40 and 28,749.60 is: 43,125.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,860.16 : 131,792.40 = 28,749.60 : x
  2. Step 2: Convert to fraction form
    87,860.16/131,792.40 = 28,749.60/x
  3. Step 3: Cross multiply
    87,860.16x = 131,792.40 × 28,749.60
  4. Step 4: Simplify right side
    87,860.16x = 3,788,978,783.04
  5. Step 5: Solve for x
    x = 3,788,978,783.04/87,860.16
  6. Step 6: Final answer
    x = 43,125.11

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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.