Home / 45,908.35-68,854.58-12,620.50

Finding the Fourth Proportional to 45,908.35, 68,854.58 and 12,620.50

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Solution

The fourth proportional to 45,908.35, 68,854.58 and 12,620.50 is: 18,928.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,908.35 : 68,854.58 = 12,620.50 : x
  2. Step 2: Convert to fraction form
    45,908.35/68,854.58 = 12,620.50/x
  3. Step 3: Cross multiply
    45,908.35x = 68,854.58 × 12,620.50
  4. Step 4: Simplify right side
    45,908.35x = 868,979,226.89
  5. Step 5: Solve for x
    x = 868,979,226.89/45,908.35
  6. Step 6: Final answer
    x = 18,928.57

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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.