Home / 74,967.75-103,445.49-48,146.55

Finding the Fourth Proportional to 74,967.75, 103,445.49 and 48,146.55

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Solution

The fourth proportional to 74,967.75, 103,445.49 and 48,146.55 is: 66,435.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,967.75 : 103,445.49 = 48,146.55 : x
  2. Step 2: Convert to fraction form
    74,967.75/103,445.49 = 48,146.55/x
  3. Step 3: Cross multiply
    74,967.75x = 103,445.49 × 48,146.55
  4. Step 4: Simplify right side
    74,967.75x = 4,980,543,456.56
  5. Step 5: Solve for x
    x = 4,980,543,456.56/74,967.75
  6. Step 6: Final answer
    x = 66,435.81

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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.