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Finding the Fourth Proportional to 79,894.39, 110,207.77 and 51,203.87

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Solution

The fourth proportional to 79,894.39, 110,207.77 and 51,203.87 is: 70,631.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,894.39 : 110,207.77 = 51,203.87 : x
  2. Step 2: Convert to fraction form
    79,894.39/110,207.77 = 51,203.87/x
  3. Step 3: Cross multiply
    79,894.39x = 110,207.77 × 51,203.87
  4. Step 4: Simplify right side
    79,894.39x = 5,643,064,328.07
  5. Step 5: Solve for x
    x = 5,643,064,328.07/79,894.39
  6. Step 6: Final answer
    x = 70,631.55

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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.