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Finding the Fourth Proportional to 79,775.78, 110,085.63 and 43,963.79

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Solution

The fourth proportional to 79,775.78, 110,085.63 and 43,963.79 is: 60,667.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,775.78 : 110,085.63 = 43,963.79 : x
  2. Step 2: Convert to fraction form
    79,775.78/110,085.63 = 43,963.79/x
  3. Step 3: Cross multiply
    79,775.78x = 110,085.63 × 43,963.79
  4. Step 4: Simplify right side
    79,775.78x = 4,839,781,519.34
  5. Step 5: Solve for x
    x = 4,839,781,519.34/79,775.78
  6. Step 6: Final answer
    x = 60,667.30

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1.5x scale

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.