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Finding the Fourth Proportional to 79,998.12, 110,334.42 and 74,632.68

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Solution

The fourth proportional to 79,998.12, 110,334.42 and 74,632.68 is: 102,934.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,998.12 : 110,334.42 = 74,632.68 : x
  2. Step 2: Convert to fraction form
    79,998.12/110,334.42 = 74,632.68/x
  3. Step 3: Cross multiply
    79,998.12x = 110,334.42 × 74,632.68
  4. Step 4: Simplify right side
    79,998.12x = 8,234,553,460.85
  5. Step 5: Solve for x
    x = 8,234,553,460.85/79,998.12
  6. Step 6: Final answer
    x = 102,934.34

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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.