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Finding the Fourth Proportional to 55,351.80, 83,027.70 and 15,906.60

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Solution

The fourth proportional to 55,351.80, 83,027.70 and 15,906.60 is: 23,859.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,351.80 : 83,027.70 = 15,906.60 : x
  2. Step 2: Convert to fraction form
    55,351.80/83,027.70 = 15,906.60/x
  3. Step 3: Cross multiply
    55,351.80x = 83,027.70 × 15,906.60
  4. Step 4: Simplify right side
    55,351.80x = 1,320,688,412.82
  5. Step 5: Solve for x
    x = 1,320,688,412.82/55,351.80
  6. Step 6: Final answer
    x = 23,859.90

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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.