Home / 45,372.31-68,035.03-20,391.01

Finding the Fourth Proportional to 45,372.31, 68,035.03 and 20,391.01

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Solution

The fourth proportional to 45,372.31, 68,035.03 and 20,391.01 is: 30,575.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,372.31 : 68,035.03 = 20,391.01 : x
  2. Step 2: Convert to fraction form
    45,372.31/68,035.03 = 20,391.01/x
  3. Step 3: Cross multiply
    45,372.31x = 68,035.03 × 20,391.01
  4. Step 4: Simplify right side
    45,372.31x = 1,387,302,977.08
  5. Step 5: Solve for x
    x = 1,387,302,977.08/45,372.31
  6. Step 6: Final answer
    x = 30,575.98

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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.