Home / 77,789.35-107,350.06-43,791.22

Finding the Fourth Proportional to 77,789.35, 107,350.06 and 43,791.22

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Solution

The fourth proportional to 77,789.35, 107,350.06 and 43,791.22 is: 60,432.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,789.35 : 107,350.06 = 43,791.22 : x
  2. Step 2: Convert to fraction form
    77,789.35/107,350.06 = 43,791.22/x
  3. Step 3: Cross multiply
    77,789.35x = 107,350.06 × 43,791.22
  4. Step 4: Simplify right side
    77,789.35x = 4,700,989,935.58
  5. Step 5: Solve for x
    x = 4,700,989,935.58/77,789.35
  6. Step 6: Final answer
    x = 60,432.31

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1.5x scale

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.