Home / 81,377.87-122,093.53-51,357.34

Finding the Fourth Proportional to 81,377.87, 122,093.53 and 51,357.34

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Solution

The fourth proportional to 81,377.87, 122,093.53 and 51,357.34 is: 77,052.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,377.87 : 122,093.53 = 51,357.34 : x
  2. Step 2: Convert to fraction form
    81,377.87/122,093.53 = 51,357.34/x
  3. Step 3: Cross multiply
    81,377.87x = 122,093.53 × 51,357.34
  4. Step 4: Simplify right side
    81,377.87x = 6,270,398,956.23
  5. Step 5: Solve for x
    x = 6,270,398,956.23/81,377.87
  6. Step 6: Final answer
    x = 77,052.88

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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.