Home / 87,662.20-131,420.40-46,109.20

Finding the Fourth Proportional to 87,662.20, 131,420.40 and 46,109.20

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Solution

The fourth proportional to 87,662.20, 131,420.40 and 46,109.20 is: 69,125.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,662.20 : 131,420.40 = 46,109.20 : x
  2. Step 2: Convert to fraction form
    87,662.20/131,420.40 = 46,109.20/x
  3. Step 3: Cross multiply
    87,662.20x = 131,420.40 × 46,109.20
  4. Step 4: Simplify right side
    87,662.20x = 6,059,689,507.68
  5. Step 5: Solve for x
    x = 6,059,689,507.68/87,662.20
  6. Step 6: Final answer
    x = 69,125.46

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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.