Home / 74,508.75-111,763.40-70,771.41

Finding the Fourth Proportional to 74,508.75, 111,763.40 and 70,771.41

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Solution

The fourth proportional to 74,508.75, 111,763.40 and 70,771.41 is: 106,157.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,508.75 : 111,763.40 = 70,771.41 : x
  2. Step 2: Convert to fraction form
    74,508.75/111,763.40 = 70,771.41/x
  3. Step 3: Cross multiply
    74,508.75x = 111,763.40 × 70,771.41
  4. Step 4: Simplify right side
    74,508.75x = 7,909,653,050.54
  5. Step 5: Solve for x
    x = 7,909,653,050.54/74,508.75
  6. Step 6: Final answer
    x = 106,157.37

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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.