Home / 74,942.13-112,410.60-18,782.73

Finding the Fourth Proportional to 74,942.13, 112,410.60 and 18,782.73

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Solution

The fourth proportional to 74,942.13, 112,410.60 and 18,782.73 is: 28,173.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,942.13 : 112,410.60 = 18,782.73 : x
  2. Step 2: Convert to fraction form
    74,942.13/112,410.60 = 18,782.73/x
  3. Step 3: Cross multiply
    74,942.13x = 112,410.60 × 18,782.73
  4. Step 4: Simplify right side
    74,942.13x = 2,111,377,948.94
  5. Step 5: Solve for x
    x = 2,111,377,948.94/74,942.13
  6. Step 6: Final answer
    x = 28,173.44

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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.