Home / 75,789.12-104,558.40-50,307.84

Finding the Fourth Proportional to 75,789.12, 104,558.40 and 50,307.84

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Solution

The fourth proportional to 75,789.12, 104,558.40 and 50,307.84 is: 69,404.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,789.12 : 104,558.40 = 50,307.84 : x
  2. Step 2: Convert to fraction form
    75,789.12/104,558.40 = 50,307.84/x
  3. Step 3: Cross multiply
    75,789.12x = 104,558.40 × 50,307.84
  4. Step 4: Simplify right side
    75,789.12x = 5,260,107,257.86
  5. Step 5: Solve for x
    x = 5,260,107,257.86/75,789.12
  6. Step 6: Final answer
    x = 69,404.52

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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.