Home / 79,418.58-109,589.46-47,586.66

Finding the Fourth Proportional to 79,418.58, 109,589.46 and 47,586.66

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Solution

The fourth proportional to 79,418.58, 109,589.46 and 47,586.66 is: 65,664.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,418.58 : 109,589.46 = 47,586.66 : x
  2. Step 2: Convert to fraction form
    79,418.58/109,589.46 = 47,586.66/x
  3. Step 3: Cross multiply
    79,418.58x = 109,589.46 × 47,586.66
  4. Step 4: Simplify right side
    79,418.58x = 5,214,996,372.60
  5. Step 5: Solve for x
    x = 5,214,996,372.60/79,418.58
  6. Step 6: Final answer
    x = 65,664.69

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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.