Home / 75,131.50-103,687.96-41,603.98

Finding the Fourth Proportional to 75,131.50, 103,687.96 and 41,603.98

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Solution

The fourth proportional to 75,131.50, 103,687.96 and 41,603.98 is: 57,417.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,131.50 : 103,687.96 = 41,603.98 : x
  2. Step 2: Convert to fraction form
    75,131.50/103,687.96 = 41,603.98/x
  3. Step 3: Cross multiply
    75,131.50x = 103,687.96 × 41,603.98
  4. Step 4: Simplify right side
    75,131.50x = 4,313,831,814.08
  5. Step 5: Solve for x
    x = 4,313,831,814.08/75,131.50
  6. Step 6: Final answer
    x = 57,417.09

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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.