Home / 50,665.60-75,998.40-13,729.60

Finding the Fourth Proportional to 50,665.60, 75,998.40 and 13,729.60

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Solution

The fourth proportional to 50,665.60, 75,998.40 and 13,729.60 is: 20,594.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,665.60 : 75,998.40 = 13,729.60 : x
  2. Step 2: Convert to fraction form
    50,665.60/75,998.40 = 13,729.60/x
  3. Step 3: Cross multiply
    50,665.60x = 75,998.40 × 13,729.60
  4. Step 4: Simplify right side
    50,665.60x = 1,043,427,632.64
  5. Step 5: Solve for x
    x = 1,043,427,632.64/50,665.60
  6. Step 6: Final answer
    x = 20,594.40

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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.