Home / 49,920.17-74,859.45-20,317.91

Finding the Fourth Proportional to 49,920.17, 74,859.45 and 20,317.91

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Solution

The fourth proportional to 49,920.17, 74,859.45 and 20,317.91 is: 30,468.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,920.17 : 74,859.45 = 20,317.91 : x
  2. Step 2: Convert to fraction form
    49,920.17/74,859.45 = 20,317.91/x
  3. Step 3: Cross multiply
    49,920.17x = 74,859.45 × 20,317.91
  4. Step 4: Simplify right side
    49,920.17x = 1,520,987,193.45
  5. Step 5: Solve for x
    x = 1,520,987,193.45/49,920.17
  6. Step 6: Final answer
    x = 30,468.39

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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.