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Finding the Fourth Proportional to 79,984.56, 110,400.08 and 45,996.78

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Solution

The fourth proportional to 79,984.56, 110,400.08 and 45,996.78 is: 63,487.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,984.56 : 110,400.08 = 45,996.78 : x
  2. Step 2: Convert to fraction form
    79,984.56/110,400.08 = 45,996.78/x
  3. Step 3: Cross multiply
    79,984.56x = 110,400.08 × 45,996.78
  4. Step 4: Simplify right side
    79,984.56x = 5,078,048,191.74
  5. Step 5: Solve for x
    x = 5,078,048,191.74/79,984.56
  6. Step 6: Final answer
    x = 63,487.86

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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.