Home / 89,160.88-123,054.62-55,180.32

Finding the Fourth Proportional to 89,160.88, 123,054.62 and 55,180.32

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Solution

The fourth proportional to 89,160.88, 123,054.62 and 55,180.32 is: 76,156.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,160.88 : 123,054.62 = 55,180.32 : x
  2. Step 2: Convert to fraction form
    89,160.88/123,054.62 = 55,180.32/x
  3. Step 3: Cross multiply
    89,160.88x = 123,054.62 × 55,180.32
  4. Step 4: Simplify right side
    89,160.88x = 6,790,193,309.08
  5. Step 5: Solve for x
    x = 6,790,193,309.08/89,160.88
  6. Step 6: Final answer
    x = 76,156.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.