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Finding the Fourth Proportional to 55,990.60, 83,997.74 and 18,548.55

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Solution

The fourth proportional to 55,990.60, 83,997.74 and 18,548.55 is: 27,826.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,990.60 : 83,997.74 = 18,548.55 : x
  2. Step 2: Convert to fraction form
    55,990.60/83,997.74 = 18,548.55/x
  3. Step 3: Cross multiply
    55,990.60x = 83,997.74 × 18,548.55
  4. Step 4: Simplify right side
    55,990.60x = 1,558,036,326.65
  5. Step 5: Solve for x
    x = 1,558,036,326.65/55,990.60
  6. Step 6: Final answer
    x = 27,826.75

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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.