Home / 87,980.06-131,994.66-28,857.32

Finding the Fourth Proportional to 87,980.06, 131,994.66 and 28,857.32

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Solution

The fourth proportional to 87,980.06, 131,994.66 and 28,857.32 is: 43,294.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,980.06 : 131,994.66 = 28,857.32 : x
  2. Step 2: Convert to fraction form
    87,980.06/131,994.66 = 28,857.32/x
  3. Step 3: Cross multiply
    87,980.06x = 131,994.66 × 28,857.32
  4. Step 4: Simplify right side
    87,980.06x = 3,809,012,141.91
  5. Step 5: Solve for x
    x = 3,809,012,141.91/87,980.06
  6. Step 6: Final answer
    x = 43,294.04

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1.5x scale

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.