Home / 77,842.20-107,415.84-43,839.82

Finding the Fourth Proportional to 77,842.20, 107,415.84 and 43,839.82

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Solution

The fourth proportional to 77,842.20, 107,415.84 and 43,839.82 is: 60,495.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,842.20 : 107,415.84 = 43,839.82 : x
  2. Step 2: Convert to fraction form
    77,842.20/107,415.84 = 43,839.82/x
  3. Step 3: Cross multiply
    77,842.20x = 107,415.84 × 43,839.82
  4. Step 4: Simplify right side
    77,842.20x = 4,709,091,090.75
  5. Step 5: Solve for x
    x = 4,709,091,090.75/77,842.20
  6. Step 6: Final answer
    x = 60,495.35

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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.