Home / 77,847.08-107,464.74-50,990.72

Finding the Fourth Proportional to 77,847.08, 107,464.74 and 50,990.72

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Solution

The fourth proportional to 77,847.08, 107,464.74 and 50,990.72 is: 70,390.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,847.08 : 107,464.74 = 50,990.72 : x
  2. Step 2: Convert to fraction form
    77,847.08/107,464.74 = 50,990.72/x
  3. Step 3: Cross multiply
    77,847.08x = 107,464.74 × 50,990.72
  4. Step 4: Simplify right side
    77,847.08x = 5,479,704,467.21
  5. Step 5: Solve for x
    x = 5,479,704,467.21/77,847.08
  6. Step 6: Final answer
    x = 70,390.62

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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.