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Finding the Fourth Proportional to 79,392, 109,560.53 and 43,582.62

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Solution

The fourth proportional to 79,392, 109,560.53 and 43,582.62 is: 60,143.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,392 : 109,560.53 = 43,582.62 : x
  2. Step 2: Convert to fraction form
    79,392/109,560.53 = 43,582.62/x
  3. Step 3: Cross multiply
    79,392x = 109,560.53 × 43,582.62
  4. Step 4: Simplify right side
    79,392x = 4,774,934,945.99
  5. Step 5: Solve for x
    x = 4,774,934,945.99/79,392
  6. Step 6: Final answer
    x = 60,143.78

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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.