Home / 77,732.22-107,011.08-74,161.47

Finding the Fourth Proportional to 77,732.22, 107,011.08 and 74,161.47

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Solution

The fourth proportional to 77,732.22, 107,011.08 and 74,161.47 is: 102,095.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,732.22 : 107,011.08 = 74,161.47 : x
  2. Step 2: Convert to fraction form
    77,732.22/107,011.08 = 74,161.47/x
  3. Step 3: Cross multiply
    77,732.22x = 107,011.08 × 74,161.47
  4. Step 4: Simplify right side
    77,732.22x = 7,936,098,999.09
  5. Step 5: Solve for x
    x = 7,936,098,999.09/77,732.22
  6. Step 6: Final answer
    x = 102,095.36

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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.