Home / 50,438.70-75,656.43-20,847.78

Finding the Fourth Proportional to 50,438.70, 75,656.43 and 20,847.78

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Solution

The fourth proportional to 50,438.70, 75,656.43 and 20,847.78 is: 31,271.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,438.70 : 75,656.43 = 20,847.78 : x
  2. Step 2: Convert to fraction form
    50,438.70/75,656.43 = 20,847.78/x
  3. Step 3: Cross multiply
    50,438.70x = 75,656.43 × 20,847.78
  4. Step 4: Simplify right side
    50,438.70x = 1,577,268,608.23
  5. Step 5: Solve for x
    x = 1,577,268,608.23/50,438.70
  6. Step 6: Final answer
    x = 31,271.00

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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.