Home / 74,360-102,704.28-50,445.16

Finding the Fourth Proportional to 74,360, 102,704.28 and 50,445.16

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Solution

The fourth proportional to 74,360, 102,704.28 and 50,445.16 is: 69,673.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,360 : 102,704.28 = 50,445.16 : x
  2. Step 2: Convert to fraction form
    74,360/102,704.28 = 50,445.16/x
  3. Step 3: Cross multiply
    74,360x = 102,704.28 × 50,445.16
  4. Step 4: Simplify right side
    74,360x = 5,180,933,837.28
  5. Step 5: Solve for x
    x = 5,180,933,837.28/74,360
  6. Step 6: Final answer
    x = 69,673.67

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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.