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Finding the Fourth Proportional to 45,420.78, 62,680.23 and 25,277.32

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Solution

The fourth proportional to 45,420.78, 62,680.23 and 25,277.32 is: 34,882.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,420.78 : 62,680.23 = 25,277.32 : x
  2. Step 2: Convert to fraction form
    45,420.78/62,680.23 = 25,277.32/x
  3. Step 3: Cross multiply
    45,420.78x = 62,680.23 × 25,277.32
  4. Step 4: Simplify right side
    45,420.78x = 1,584,388,231.38
  5. Step 5: Solve for x
    x = 1,584,388,231.38/45,420.78
  6. Step 6: Final answer
    x = 34,882.45

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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.