Home / 92,821.47-128,093.74-50,380.01

Finding the Fourth Proportional to 92,821.47, 128,093.74 and 50,380.01

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Solution

The fourth proportional to 92,821.47, 128,093.74 and 50,380.01 is: 69,524.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,821.47 : 128,093.74 = 50,380.01 : x
  2. Step 2: Convert to fraction form
    92,821.47/128,093.74 = 50,380.01/x
  3. Step 3: Cross multiply
    92,821.47x = 128,093.74 × 50,380.01
  4. Step 4: Simplify right side
    92,821.47x = 6,453,363,902.14
  5. Step 5: Solve for x
    x = 6,453,363,902.14/92,821.47
  6. Step 6: Final answer
    x = 69,524.47

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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.