Home / 74,845.11-103,303.59-49,356.06

Finding the Fourth Proportional to 74,845.11, 103,303.59 and 49,356.06

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Solution

The fourth proportional to 74,845.11, 103,303.59 and 49,356.06 is: 68,122.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,845.11 : 103,303.59 = 49,356.06 : x
  2. Step 2: Convert to fraction form
    74,845.11/103,303.59 = 49,356.06/x
  3. Step 3: Cross multiply
    74,845.11x = 103,303.59 × 49,356.06
  4. Step 4: Simplify right side
    74,845.11x = 5,098,658,186.26
  5. Step 5: Solve for x
    x = 5,098,658,186.26/74,845.11
  6. Step 6: Final answer
    x = 68,122.80

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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.