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Finding the Fourth Proportional to 77,784.38, 116,676.57 and 22,380.38

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Solution

The fourth proportional to 77,784.38, 116,676.57 and 22,380.38 is: 33,570.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,784.38 : 116,676.57 = 22,380.38 : x
  2. Step 2: Convert to fraction form
    77,784.38/116,676.57 = 22,380.38/x
  3. Step 3: Cross multiply
    77,784.38x = 116,676.57 × 22,380.38
  4. Step 4: Simplify right side
    77,784.38x = 2,611,265,278.41
  5. Step 5: Solve for x
    x = 2,611,265,278.41/77,784.38
  6. Step 6: Final answer
    x = 33,570.56

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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.