Home / 74,529-111,766.44-40,820.05

Finding the Fourth Proportional to 74,529, 111,766.44 and 40,820.05

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Solution

The fourth proportional to 74,529, 111,766.44 and 40,820.05 is: 61,215.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,529 : 111,766.44 = 40,820.05 : x
  2. Step 2: Convert to fraction form
    74,529/111,766.44 = 40,820.05/x
  3. Step 3: Cross multiply
    74,529x = 111,766.44 × 40,820.05
  4. Step 4: Simplify right side
    74,529x = 4,562,311,669.12
  5. Step 5: Solve for x
    x = 4,562,311,669.12/74,529
  6. Step 6: Final answer
    x = 61,215.25

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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.