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Finding the Fourth Proportional to 52,057.46, 78,100.78 and 20,914.58

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Solution

The fourth proportional to 52,057.46, 78,100.78 and 20,914.58 is: 31,377.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,057.46 : 78,100.78 = 20,914.58 : x
  2. Step 2: Convert to fraction form
    52,057.46/78,100.78 = 20,914.58/x
  3. Step 3: Cross multiply
    52,057.46x = 78,100.78 × 20,914.58
  4. Step 4: Simplify right side
    52,057.46x = 1,633,445,011.37
  5. Step 5: Solve for x
    x = 1,633,445,011.37/52,057.46
  6. Step 6: Final answer
    x = 31,377.73

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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.