Home / 77,122.07-115,474.41-50,401.49

Finding the Fourth Proportional to 77,122.07, 115,474.41 and 50,401.49

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Solution

The fourth proportional to 77,122.07, 115,474.41 and 50,401.49 is: 75,465.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,122.07 : 115,474.41 = 50,401.49 : x
  2. Step 2: Convert to fraction form
    77,122.07/115,474.41 = 50,401.49/x
  3. Step 3: Cross multiply
    77,122.07x = 115,474.41 × 50,401.49
  4. Step 4: Simplify right side
    77,122.07x = 5,820,082,320.87
  5. Step 5: Solve for x
    x = 5,820,082,320.87/77,122.07
  6. Step 6: Final answer
    x = 75,465.85

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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.