Home / 75,415.18-113,137.34-28,664.42

Finding the Fourth Proportional to 75,415.18, 113,137.34 and 28,664.42

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Solution

The fourth proportional to 75,415.18, 113,137.34 and 28,664.42 is: 43,002.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,415.18 : 113,137.34 = 28,664.42 : x
  2. Step 2: Convert to fraction form
    75,415.18/113,137.34 = 28,664.42/x
  3. Step 3: Cross multiply
    75,415.18x = 113,137.34 × 28,664.42
  4. Step 4: Simplify right side
    75,415.18x = 3,243,016,231.44
  5. Step 5: Solve for x
    x = 3,243,016,231.44/75,415.18
  6. Step 6: Final answer
    x = 43,002.17

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1.5x scale

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.