Home / 77,172.96-106,529.28-50,338.56

Finding the Fourth Proportional to 77,172.96, 106,529.28 and 50,338.56

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Solution

The fourth proportional to 77,172.96, 106,529.28 and 50,338.56 is: 69,487.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,172.96 : 106,529.28 = 50,338.56 : x
  2. Step 2: Convert to fraction form
    77,172.96/106,529.28 = 50,338.56/x
  3. Step 3: Cross multiply
    77,172.96x = 106,529.28 × 50,338.56
  4. Step 4: Simplify right side
    77,172.96x = 5,362,530,553.04
  5. Step 5: Solve for x
    x = 5,362,530,553.04/77,172.96
  6. Step 6: Final answer
    x = 69,487.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.