Home / 45,855.10-68,815.32-20,898.46

Finding the Fourth Proportional to 45,855.10, 68,815.32 and 20,898.46

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Solution

The fourth proportional to 45,855.10, 68,815.32 and 20,898.46 is: 31,362.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,855.10 : 68,815.32 = 20,898.46 : x
  2. Step 2: Convert to fraction form
    45,855.10/68,815.32 = 20,898.46/x
  3. Step 3: Cross multiply
    45,855.10x = 68,815.32 × 20,898.46
  4. Step 4: Simplify right side
    45,855.10x = 1,438,134,212.41
  5. Step 5: Solve for x
    x = 1,438,134,212.41/45,855.10
  6. Step 6: Final answer
    x = 31,362.58

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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.