Home / 50,490.95-75,739.52-20,911.10

Finding the Fourth Proportional to 50,490.95, 75,739.52 and 20,911.10

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Solution

The fourth proportional to 50,490.95, 75,739.52 and 20,911.10 is: 31,367.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,490.95 : 75,739.52 = 20,911.10 : x
  2. Step 2: Convert to fraction form
    50,490.95/75,739.52 = 20,911.10/x
  3. Step 3: Cross multiply
    50,490.95x = 75,739.52 × 20,911.10
  4. Step 4: Simplify right side
    50,490.95x = 1,583,796,350.25
  5. Step 5: Solve for x
    x = 1,583,796,350.25/50,490.95
  6. Step 6: Final answer
    x = 31,367.93

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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.