Home / 76,619.14-114,912.51-36,615.40

Finding the Fourth Proportional to 76,619.14, 114,912.51 and 36,615.40

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Solution

The fourth proportional to 76,619.14, 114,912.51 and 36,615.40 is: 54,915.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,619.14 : 114,912.51 = 36,615.40 : x
  2. Step 2: Convert to fraction form
    76,619.14/114,912.51 = 36,615.40/x
  3. Step 3: Cross multiply
    76,619.14x = 114,912.51 × 36,615.40
  4. Step 4: Simplify right side
    76,619.14x = 4,207,567,518.65
  5. Step 5: Solve for x
    x = 4,207,567,518.65/76,619.14
  6. Step 6: Final answer
    x = 54,915.36

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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.