Home / 75,690.56-113,469.84-31,289.60

Finding the Fourth Proportional to 75,690.56, 113,469.84 and 31,289.60

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Solution

The fourth proportional to 75,690.56, 113,469.84 and 31,289.60 is: 46,907.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,690.56 : 113,469.84 = 31,289.60 : x
  2. Step 2: Convert to fraction form
    75,690.56/113,469.84 = 31,289.60/x
  3. Step 3: Cross multiply
    75,690.56x = 113,469.84 × 31,289.60
  4. Step 4: Simplify right side
    75,690.56x = 3,550,425,905.66
  5. Step 5: Solve for x
    x = 3,550,425,905.66/75,690.56
  6. Step 6: Final answer
    x = 46,907.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.