Home / 75,904.98-113,857.80-31,531.69

Finding the Fourth Proportional to 75,904.98, 113,857.80 and 31,531.69

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Solution

The fourth proportional to 75,904.98, 113,857.80 and 31,531.69 is: 47,297.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,904.98 : 113,857.80 = 31,531.69 : x
  2. Step 2: Convert to fraction form
    75,904.98/113,857.80 = 31,531.69/x
  3. Step 3: Cross multiply
    75,904.98x = 113,857.80 × 31,531.69
  4. Step 4: Simplify right side
    75,904.98x = 3,590,128,853.68
  5. Step 5: Solve for x
    x = 3,590,128,853.68/75,904.98
  6. Step 6: Final answer
    x = 47,297.67

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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.