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Finding the Fourth Proportional to 55,643.48, 83,447.60 and 18,194.90

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Solution

The fourth proportional to 55,643.48, 83,447.60 and 18,194.90 is: 27,286.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,643.48 : 83,447.60 = 18,194.90 : x
  2. Step 2: Convert to fraction form
    55,643.48/83,447.60 = 18,194.90/x
  3. Step 3: Cross multiply
    55,643.48x = 83,447.60 × 18,194.90
  4. Step 4: Simplify right side
    55,643.48x = 1,518,320,737.24
  5. Step 5: Solve for x
    x = 1,518,320,737.24/55,643.48
  6. Step 6: Final answer
    x = 27,286.59

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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.