Home / 47,768.22-65,949.66-30,778.47

Finding the Fourth Proportional to 47,768.22, 65,949.66 and 30,778.47

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Solution

The fourth proportional to 47,768.22, 65,949.66 and 30,778.47 is: 42,493.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,768.22 : 65,949.66 = 30,778.47 : x
  2. Step 2: Convert to fraction form
    47,768.22/65,949.66 = 30,778.47/x
  3. Step 3: Cross multiply
    47,768.22x = 65,949.66 × 30,778.47
  4. Step 4: Simplify right side
    47,768.22x = 2,029,829,631.82
  5. Step 5: Solve for x
    x = 2,029,829,631.82/47,768.22
  6. Step 6: Final answer
    x = 42,493.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.