Home / 75,711.12-104,481.34-43,898.47

Finding the Fourth Proportional to 75,711.12, 104,481.34 and 43,898.47

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Solution

The fourth proportional to 75,711.12, 104,481.34 and 43,898.47 is: 60,579.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,711.12 : 104,481.34 = 43,898.47 : x
  2. Step 2: Convert to fraction form
    75,711.12/104,481.34 = 43,898.47/x
  3. Step 3: Cross multiply
    75,711.12x = 104,481.34 × 43,898.47
  4. Step 4: Simplify right side
    75,711.12x = 4,586,570,818.09
  5. Step 5: Solve for x
    x = 4,586,570,818.09/75,711.12
  6. Step 6: Final answer
    x = 60,579.89

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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.