Home / 74,643.40-103,029.06-49,168.36

Finding the Fourth Proportional to 74,643.40, 103,029.06 and 49,168.36

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Solution

The fourth proportional to 74,643.40, 103,029.06 and 49,168.36 is: 67,866.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,643.40 : 103,029.06 = 49,168.36 : x
  2. Step 2: Convert to fraction form
    74,643.40/103,029.06 = 49,168.36/x
  3. Step 3: Cross multiply
    74,643.40x = 103,029.06 × 49,168.36
  4. Step 4: Simplify right side
    74,643.40x = 5,065,769,912.54
  5. Step 5: Solve for x
    x = 5,065,769,912.54/74,643.40
  6. Step 6: Final answer
    x = 67,866.28

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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.