Home / 49,877.91-74,816.73-20,288.75

Finding the Fourth Proportional to 49,877.91, 74,816.73 and 20,288.75

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Solution

The fourth proportional to 49,877.91, 74,816.73 and 20,288.75 is: 30,433.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,877.91 : 74,816.73 = 20,288.75 : x
  2. Step 2: Convert to fraction form
    49,877.91/74,816.73 = 20,288.75/x
  3. Step 3: Cross multiply
    49,877.91x = 74,816.73 × 20,288.75
  4. Step 4: Simplify right side
    49,877.91x = 1,517,937,556.70
  5. Step 5: Solve for x
    x = 1,517,937,556.70/49,877.91
  6. Step 6: Final answer
    x = 30,433.06

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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.