Home / 72,933.20-100,651.92-40,668.56

Finding the Fourth Proportional to 72,933.20, 100,651.92 and 40,668.56

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Solution

The fourth proportional to 72,933.20, 100,651.92 and 40,668.56 is: 56,124.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,933.20 : 100,651.92 = 40,668.56 : x
  2. Step 2: Convert to fraction form
    72,933.20/100,651.92 = 40,668.56/x
  3. Step 3: Cross multiply
    72,933.20x = 100,651.92 × 40,668.56
  4. Step 4: Simplify right side
    72,933.20x = 4,093,368,647.64
  5. Step 5: Solve for x
    x = 4,093,368,647.64/72,933.20
  6. Step 6: Final answer
    x = 56,124.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.