Home / 87,812.76-131,705.73-28,648.35

Finding the Fourth Proportional to 87,812.76, 131,705.73 and 28,648.35

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Solution

The fourth proportional to 87,812.76, 131,705.73 and 28,648.35 is: 42,968.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,812.76 : 131,705.73 = 28,648.35 : x
  2. Step 2: Convert to fraction form
    87,812.76/131,705.73 = 28,648.35/x
  3. Step 3: Cross multiply
    87,812.76x = 131,705.73 × 28,648.35
  4. Step 4: Simplify right side
    87,812.76x = 3,773,151,850.05
  5. Step 5: Solve for x
    x = 3,773,151,850.05/87,812.76
  6. Step 6: Final answer
    x = 42,968.15

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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.