Home / 68,420.28-102,552.12-30,923.76

Finding the Fourth Proportional to 68,420.28, 102,552.12 and 30,923.76

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Solution

The fourth proportional to 68,420.28, 102,552.12 and 30,923.76 is: 46,350.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,420.28 : 102,552.12 = 30,923.76 : x
  2. Step 2: Convert to fraction form
    68,420.28/102,552.12 = 30,923.76/x
  3. Step 3: Cross multiply
    68,420.28x = 102,552.12 × 30,923.76
  4. Step 4: Simplify right side
    68,420.28x = 3,171,297,146.37
  5. Step 5: Solve for x
    x = 3,171,297,146.37/68,420.28
  6. Step 6: Final answer
    x = 46,350.25

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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.