Home / 68,928.14-103,302.84-28,901.72

Finding the Fourth Proportional to 68,928.14, 103,302.84 and 28,901.72

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Solution

The fourth proportional to 68,928.14, 103,302.84 and 28,901.72 is: 43,315.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,928.14 : 103,302.84 = 28,901.72 : x
  2. Step 2: Convert to fraction form
    68,928.14/103,302.84 = 28,901.72/x
  3. Step 3: Cross multiply
    68,928.14x = 103,302.84 × 28,901.72
  4. Step 4: Simplify right side
    68,928.14x = 2,985,629,756.88
  5. Step 5: Solve for x
    x = 2,985,629,756.88/68,928.14
  6. Step 6: Final answer
    x = 43,315.11

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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.