Home / 50,559.81-75,807.32-20,998.05

Finding the Fourth Proportional to 50,559.81, 75,807.32 and 20,998.05

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Solution

The fourth proportional to 50,559.81, 75,807.32 and 20,998.05 is: 31,483.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,559.81 : 75,807.32 = 20,998.05 : x
  2. Step 2: Convert to fraction form
    50,559.81/75,807.32 = 20,998.05/x
  3. Step 3: Cross multiply
    50,559.81x = 75,807.32 × 20,998.05
  4. Step 4: Simplify right side
    50,559.81x = 1,591,805,790.74
  5. Step 5: Solve for x
    x = 1,591,805,790.74/50,559.81
  6. Step 6: Final answer
    x = 31,483.62

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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.