Home / 74,822.91-112,137.39-30,398.10

Finding the Fourth Proportional to 74,822.91, 112,137.39 and 30,398.10

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Solution

The fourth proportional to 74,822.91, 112,137.39 and 30,398.10 is: 45,557.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,822.91 : 112,137.39 = 30,398.10 : x
  2. Step 2: Convert to fraction form
    74,822.91/112,137.39 = 30,398.10/x
  3. Step 3: Cross multiply
    74,822.91x = 112,137.39 × 30,398.10
  4. Step 4: Simplify right side
    74,822.91x = 3,408,763,594.96
  5. Step 5: Solve for x
    x = 3,408,763,594.96/74,822.91
  6. Step 6: Final answer
    x = 45,557.75

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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.