Home / 68,161.47-102,159.32-36,493.71

Finding the Fourth Proportional to 68,161.47, 102,159.32 and 36,493.71

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Solution

The fourth proportional to 68,161.47, 102,159.32 and 36,493.71 is: 54,696.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,161.47 : 102,159.32 = 36,493.71 : x
  2. Step 2: Convert to fraction form
    68,161.47/102,159.32 = 36,493.71/x
  3. Step 3: Cross multiply
    68,161.47x = 102,159.32 × 36,493.71
  4. Step 4: Simplify right side
    68,161.47x = 3,728,172,415.41
  5. Step 5: Solve for x
    x = 3,728,172,415.41/68,161.47
  6. Step 6: Final answer
    x = 54,696.19

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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.