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Finding the Fourth Proportional to 77,997.98, 116,996.98 and 18,833.60

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Solution

The fourth proportional to 77,997.98, 116,996.98 and 18,833.60 is: 28,250.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,997.98 : 116,996.98 = 18,833.60 : x
  2. Step 2: Convert to fraction form
    77,997.98/116,996.98 = 18,833.60/x
  3. Step 3: Cross multiply
    77,997.98x = 116,996.98 × 18,833.60
  4. Step 4: Simplify right side
    77,997.98x = 2,203,474,322.53
  5. Step 5: Solve for x
    x = 2,203,474,322.53/77,997.98
  6. Step 6: Final answer
    x = 28,250.40

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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.