Home / 75,828.62-113,694.25-31,485.98

Finding the Fourth Proportional to 75,828.62, 113,694.25 and 31,485.98

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Solution

The fourth proportional to 75,828.62, 113,694.25 and 31,485.98 is: 47,208.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,828.62 : 113,694.25 = 31,485.98 : x
  2. Step 2: Convert to fraction form
    75,828.62/113,694.25 = 31,485.98/x
  3. Step 3: Cross multiply
    75,828.62x = 113,694.25 × 31,485.98
  4. Step 4: Simplify right side
    75,828.62x = 3,579,774,881.62
  5. Step 5: Solve for x
    x = 3,579,774,881.62/75,828.62
  6. Step 6: Final answer
    x = 47,208.76

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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.