Home / 75,106.14-103,643.35-41,113.78

Finding the Fourth Proportional to 75,106.14, 103,643.35 and 41,113.78

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Solution

The fourth proportional to 75,106.14, 103,643.35 and 41,113.78 is: 56,735.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,106.14 : 103,643.35 = 41,113.78 : x
  2. Step 2: Convert to fraction form
    75,106.14/103,643.35 = 41,113.78/x
  3. Step 3: Cross multiply
    75,106.14x = 103,643.35 × 41,113.78
  4. Step 4: Simplify right side
    75,106.14x = 4,261,169,890.36
  5. Step 5: Solve for x
    x = 4,261,169,890.36/75,106.14
  6. Step 6: Final answer
    x = 56,735.31

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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.