Home / 45,890.53-68,808.10-20,585.43

Finding the Fourth Proportional to 45,890.53, 68,808.10 and 20,585.43

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Solution

The fourth proportional to 45,890.53, 68,808.10 and 20,585.43 is: 30,865.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,890.53 : 68,808.10 = 20,585.43 : x
  2. Step 2: Convert to fraction form
    45,890.53/68,808.10 = 20,585.43/x
  3. Step 3: Cross multiply
    45,890.53x = 68,808.10 × 20,585.43
  4. Step 4: Simplify right side
    45,890.53x = 1,416,444,325.98
  5. Step 5: Solve for x
    x = 1,416,444,325.98/45,890.53
  6. Step 6: Final answer
    x = 30,865.72

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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.