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Finding the Fourth Proportional to 45,673.79, 63,039.99 and 27,765

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Solution

The fourth proportional to 45,673.79, 63,039.99 and 27,765 is: 38,321.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,673.79 : 63,039.99 = 27,765 : x
  2. Step 2: Convert to fraction form
    45,673.79/63,039.99 = 27,765/x
  3. Step 3: Cross multiply
    45,673.79x = 63,039.99 × 27,765
  4. Step 4: Simplify right side
    45,673.79x = 1,750,305,322.35
  5. Step 5: Solve for x
    x = 1,750,305,322.35/45,673.79
  6. Step 6: Final answer
    x = 38,321.88

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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.