Home / 70,531.07-105,837.91-26,188.43

Finding the Fourth Proportional to 70,531.07, 105,837.91 and 26,188.43

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Solution

The fourth proportional to 70,531.07, 105,837.91 and 26,188.43 is: 39,297.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,531.07 : 105,837.91 = 26,188.43 : x
  2. Step 2: Convert to fraction form
    70,531.07/105,837.91 = 26,188.43/x
  3. Step 3: Cross multiply
    70,531.07x = 105,837.91 × 26,188.43
  4. Step 4: Simplify right side
    70,531.07x = 2,771,728,102.72
  5. Step 5: Solve for x
    x = 2,771,728,102.72/70,531.07
  6. Step 6: Final answer
    x = 39,297.98

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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.