Home / 74,851.39-103,312.26-49,362.36

Finding the Fourth Proportional to 74,851.39, 103,312.26 and 49,362.36

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Solution

The fourth proportional to 74,851.39, 103,312.26 and 49,362.36 is: 68,131.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,851.39 : 103,312.26 = 49,362.36 : x
  2. Step 2: Convert to fraction form
    74,851.39/103,312.26 = 49,362.36/x
  3. Step 3: Cross multiply
    74,851.39x = 103,312.26 × 49,362.36
  4. Step 4: Simplify right side
    74,851.39x = 5,099,736,583.11
  5. Step 5: Solve for x
    x = 5,099,736,583.11/74,851.39
  6. Step 6: Final answer
    x = 68,131.49

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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.