Home / 71,611.22-98,812.51-41,390.72

Finding the Fourth Proportional to 71,611.22, 98,812.51 and 41,390.72

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Solution

The fourth proportional to 71,611.22, 98,812.51 and 41,390.72 is: 57,112.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,611.22 : 98,812.51 = 41,390.72 : x
  2. Step 2: Convert to fraction form
    71,611.22/98,812.51 = 41,390.72/x
  3. Step 3: Cross multiply
    71,611.22x = 98,812.51 × 41,390.72
  4. Step 4: Simplify right side
    71,611.22x = 4,089,920,336.37
  5. Step 5: Solve for x
    x = 4,089,920,336.37/71,611.22
  6. Step 6: Final answer
    x = 57,112.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.