Home / 45,440.82-68,172.30-15,858.90

Finding the Fourth Proportional to 45,440.82, 68,172.30 and 15,858.90

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Solution

The fourth proportional to 45,440.82, 68,172.30 and 15,858.90 is: 23,792.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,440.82 : 68,172.30 = 15,858.90 : x
  2. Step 2: Convert to fraction form
    45,440.82/68,172.30 = 15,858.90/x
  3. Step 3: Cross multiply
    45,440.82x = 68,172.30 × 15,858.90
  4. Step 4: Simplify right side
    45,440.82x = 1,081,137,688.47
  5. Step 5: Solve for x
    x = 1,081,137,688.47/45,440.82
  6. Step 6: Final answer
    x = 23,792.21

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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.