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Finding the Fourth Proportional to 45,860, 63,286.80 and 27,008.72

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Solution

The fourth proportional to 45,860, 63,286.80 and 27,008.72 is: 37,272.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,860 : 63,286.80 = 27,008.72 : x
  2. Step 2: Convert to fraction form
    45,860/63,286.80 = 27,008.72/x
  3. Step 3: Cross multiply
    45,860x = 63,286.80 × 27,008.72
  4. Step 4: Simplify right side
    45,860x = 1,709,295,460.90
  5. Step 5: Solve for x
    x = 1,709,295,460.90/45,860
  6. Step 6: Final answer
    x = 37,272.03

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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.