Home / 109,311.25-163,977.69-30,425.44

Finding the Fourth Proportional to 109,311.25, 163,977.69 and 30,425.44

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Solution

The fourth proportional to 109,311.25, 163,977.69 and 30,425.44 is: 45,641.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,311.25 : 163,977.69 = 30,425.44 : x
  2. Step 2: Convert to fraction form
    109,311.25/163,977.69 = 30,425.44/x
  3. Step 3: Cross multiply
    109,311.25x = 163,977.69 × 30,425.44
  4. Step 4: Simplify right side
    109,311.25x = 4,989,093,368.43
  5. Step 5: Solve for x
    x = 4,989,093,368.43/109,311.25
  6. Step 6: Final answer
    x = 45,641.17

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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.