Home / 45,372.78-68,045.51-21,668.10

Finding the Fourth Proportional to 45,372.78, 68,045.51 and 21,668.10

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Solution

The fourth proportional to 45,372.78, 68,045.51 and 21,668.10 is: 32,495.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,372.78 : 68,045.51 = 21,668.10 : x
  2. Step 2: Convert to fraction form
    45,372.78/68,045.51 = 21,668.10/x
  3. Step 3: Cross multiply
    45,372.78x = 68,045.51 × 21,668.10
  4. Step 4: Simplify right side
    45,372.78x = 1,474,416,806.89
  5. Step 5: Solve for x
    x = 1,474,416,806.89/45,372.78
  6. Step 6: Final answer
    x = 32,495.62

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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.