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Finding the Fourth Proportional to 45,685.79, 63,065.82 and 27,786.55

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Solution

The fourth proportional to 45,685.79, 63,065.82 and 27,786.55 is: 38,357.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,685.79 : 63,065.82 = 27,786.55 : x
  2. Step 2: Convert to fraction form
    45,685.79/63,065.82 = 27,786.55/x
  3. Step 3: Cross multiply
    45,685.79x = 63,065.82 × 27,786.55
  4. Step 4: Simplify right side
    45,685.79x = 1,752,381,245.39
  5. Step 5: Solve for x
    x = 1,752,381,245.39/45,685.79
  6. Step 6: Final answer
    x = 38,357.25

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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.