Home / 79,581.07-109,784.95-47,694.61

Finding the Fourth Proportional to 79,581.07, 109,784.95 and 47,694.61

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Solution

The fourth proportional to 79,581.07, 109,784.95 and 47,694.61 is: 65,796.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,581.07 : 109,784.95 = 47,694.61 : x
  2. Step 2: Convert to fraction form
    79,581.07/109,784.95 = 47,694.61/x
  3. Step 3: Cross multiply
    79,581.07x = 109,784.95 × 47,694.61
  4. Step 4: Simplify right side
    79,581.07x = 5,236,150,374.12
  5. Step 5: Solve for x
    x = 5,236,150,374.12/79,581.07
  6. Step 6: Final answer
    x = 65,796.43

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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.