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Finding the Fourth Proportional to 79,827.84, 110,169.81 and 45,840.78

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Solution

The fourth proportional to 79,827.84, 110,169.81 and 45,840.78 is: 63,264.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,827.84 : 110,169.81 = 45,840.78 : x
  2. Step 2: Convert to fraction form
    79,827.84/110,169.81 = 45,840.78/x
  3. Step 3: Cross multiply
    79,827.84x = 110,169.81 × 45,840.78
  4. Step 4: Simplify right side
    79,827.84x = 5,050,270,022.85
  5. Step 5: Solve for x
    x = 5,050,270,022.85/79,827.84
  6. Step 6: Final answer
    x = 63,264.52

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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.