Home / 68,389.82-102,574.48-21,636.62

Finding the Fourth Proportional to 68,389.82, 102,574.48 and 21,636.62

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Solution

The fourth proportional to 68,389.82, 102,574.48 and 21,636.62 is: 32,451.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,389.82 : 102,574.48 = 21,636.62 : x
  2. Step 2: Convert to fraction form
    68,389.82/102,574.48 = 21,636.62/x
  3. Step 3: Cross multiply
    68,389.82x = 102,574.48 × 21,636.62
  4. Step 4: Simplify right side
    68,389.82x = 2,219,365,045.46
  5. Step 5: Solve for x
    x = 2,219,365,045.46/68,389.82
  6. Step 6: Final answer
    x = 32,451.69

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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.