Home / 74,005.46-111,015.18-20,697.43

Finding the Fourth Proportional to 74,005.46, 111,015.18 and 20,697.43

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Solution

The fourth proportional to 74,005.46, 111,015.18 and 20,697.43 is: 31,048.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,005.46 : 111,015.18 = 20,697.43 : x
  2. Step 2: Convert to fraction form
    74,005.46/111,015.18 = 20,697.43/x
  3. Step 3: Cross multiply
    74,005.46x = 111,015.18 × 20,697.43
  4. Step 4: Simplify right side
    74,005.46x = 2,297,728,916.99
  5. Step 5: Solve for x
    x = 2,297,728,916.99/74,005.46
  6. Step 6: Final answer
    x = 31,048.10

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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.