Home / 50,720.86-76,081.32-19,122.34

Finding the Fourth Proportional to 50,720.86, 76,081.32 and 19,122.34

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Solution

The fourth proportional to 50,720.86, 76,081.32 and 19,122.34 is: 28,683.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,720.86 : 76,081.32 = 19,122.34 : x
  2. Step 2: Convert to fraction form
    50,720.86/76,081.32 = 19,122.34/x
  3. Step 3: Cross multiply
    50,720.86x = 76,081.32 × 19,122.34
  4. Step 4: Simplify right side
    50,720.86x = 1,454,852,868.69
  5. Step 5: Solve for x
    x = 1,454,852,868.69/50,720.86
  6. Step 6: Final answer
    x = 28,683.52

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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.