Home / 75,971.50-113,668.08-45,874.96

Finding the Fourth Proportional to 75,971.50, 113,668.08 and 45,874.96

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Solution

The fourth proportional to 75,971.50, 113,668.08 and 45,874.96 is: 68,637.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,971.50 : 113,668.08 = 45,874.96 : x
  2. Step 2: Convert to fraction form
    75,971.50/113,668.08 = 45,874.96/x
  3. Step 3: Cross multiply
    75,971.50x = 113,668.08 × 45,874.96
  4. Step 4: Simplify right side
    75,971.50x = 5,214,518,623.28
  5. Step 5: Solve for x
    x = 5,214,518,623.28/75,971.50
  6. Step 6: Final answer
    x = 68,637.83

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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.