Home / 51,590.43-77,392.53-20,418.39

Finding the Fourth Proportional to 51,590.43, 77,392.53 and 20,418.39

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Solution

The fourth proportional to 51,590.43, 77,392.53 and 20,418.39 is: 30,630.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,590.43 : 77,392.53 = 20,418.39 : x
  2. Step 2: Convert to fraction form
    51,590.43/77,392.53 = 20,418.39/x
  3. Step 3: Cross multiply
    51,590.43x = 77,392.53 × 20,418.39
  4. Step 4: Simplify right side
    51,590.43x = 1,580,230,860.63
  5. Step 5: Solve for x
    x = 1,580,230,860.63/51,590.43
  6. Step 6: Final answer
    x = 30,630.31

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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.