Home / 80,564.16-111,172.98-48,750.60

Finding the Fourth Proportional to 80,564.16, 111,172.98 and 48,750.60

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Solution

The fourth proportional to 80,564.16, 111,172.98 and 48,750.60 is: 67,272.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,564.16 : 111,172.98 = 48,750.60 : x
  2. Step 2: Convert to fraction form
    80,564.16/111,172.98 = 48,750.60/x
  3. Step 3: Cross multiply
    80,564.16x = 111,172.98 × 48,750.60
  4. Step 4: Simplify right side
    80,564.16x = 5,419,749,478.79
  5. Step 5: Solve for x
    x = 5,419,749,478.79/80,564.16
  6. Step 6: Final answer
    x = 67,272.46

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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.