Home / 68,075.28-102,077.82-30,603.33

Finding the Fourth Proportional to 68,075.28, 102,077.82 and 30,603.33

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Solution

The fourth proportional to 68,075.28, 102,077.82 and 30,603.33 is: 45,889.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,075.28 : 102,077.82 = 30,603.33 : x
  2. Step 2: Convert to fraction form
    68,075.28/102,077.82 = 30,603.33/x
  3. Step 3: Cross multiply
    68,075.28x = 102,077.82 × 30,603.33
  4. Step 4: Simplify right side
    68,075.28x = 3,123,921,211.14
  5. Step 5: Solve for x
    x = 3,123,921,211.14/68,075.28
  6. Step 6: Final answer
    x = 45,889.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.