Home / 75,685.19-104,445.60-43,872.54

Finding the Fourth Proportional to 75,685.19, 104,445.60 and 43,872.54

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Solution

The fourth proportional to 75,685.19, 104,445.60 and 43,872.54 is: 60,544.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,685.19 : 104,445.60 = 43,872.54 : x
  2. Step 2: Convert to fraction form
    75,685.19/104,445.60 = 43,872.54/x
  3. Step 3: Cross multiply
    75,685.19x = 104,445.60 × 43,872.54
  4. Step 4: Simplify right side
    75,685.19x = 4,582,293,544.46
  5. Step 5: Solve for x
    x = 4,582,293,544.46/75,685.19
  6. Step 6: Final answer
    x = 60,544.12

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1.5x scale

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.