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Finding the Fourth Proportional to 45,639, 62,981.82 and 25,767

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Solution

The fourth proportional to 45,639, 62,981.82 and 25,767 is: 35,558.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,639 : 62,981.82 = 25,767 : x
  2. Step 2: Convert to fraction form
    45,639/62,981.82 = 25,767/x
  3. Step 3: Cross multiply
    45,639x = 62,981.82 × 25,767
  4. Step 4: Simplify right side
    45,639x = 1,622,852,555.94
  5. Step 5: Solve for x
    x = 1,622,852,555.94/45,639
  6. Step 6: Final answer
    x = 35,558.46

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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.