Home / 50,317.75-75,479.19-12,878.13

Finding the Fourth Proportional to 50,317.75, 75,479.19 and 12,878.13

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Solution

The fourth proportional to 50,317.75, 75,479.19 and 12,878.13 is: 19,317.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,317.75 : 75,479.19 = 12,878.13 : x
  2. Step 2: Convert to fraction form
    50,317.75/75,479.19 = 12,878.13/x
  3. Step 3: Cross multiply
    50,317.75x = 75,479.19 × 12,878.13
  4. Step 4: Simplify right side
    50,317.75x = 972,030,821.11
  5. Step 5: Solve for x
    x = 972,030,821.11/50,317.75
  6. Step 6: Final answer
    x = 19,317.85

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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.