Home / 75,080.48-112,396.36-45,408.56

Finding the Fourth Proportional to 75,080.48, 112,396.36 and 45,408.56

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Solution

The fourth proportional to 75,080.48, 112,396.36 and 45,408.56 is: 67,977.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,080.48 : 112,396.36 = 45,408.56 : x
  2. Step 2: Convert to fraction form
    75,080.48/112,396.36 = 45,408.56/x
  3. Step 3: Cross multiply
    75,080.48x = 112,396.36 × 45,408.56
  4. Step 4: Simplify right side
    75,080.48x = 5,103,756,856.84
  5. Step 5: Solve for x
    x = 5,103,756,856.84/75,080.48
  6. Step 6: Final answer
    x = 67,977.15

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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.