Home / 75,163.58-112,588.49-45,082.42

Finding the Fourth Proportional to 75,163.58, 112,588.49 and 45,082.42

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Solution

The fourth proportional to 75,163.58, 112,588.49 and 45,082.42 is: 67,529.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,163.58 : 112,588.49 = 45,082.42 : x
  2. Step 2: Convert to fraction form
    75,163.58/112,588.49 = 45,082.42/x
  3. Step 3: Cross multiply
    75,163.58x = 112,588.49 × 45,082.42
  4. Step 4: Simplify right side
    75,163.58x = 5,075,761,030.40
  5. Step 5: Solve for x
    x = 5,075,761,030.40/75,163.58
  6. Step 6: Final answer
    x = 67,529.53

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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.