Home / 45,603.72-68,406.36-20,644.68

Finding the Fourth Proportional to 45,603.72, 68,406.36 and 20,644.68

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Solution

The fourth proportional to 45,603.72, 68,406.36 and 20,644.68 is: 30,967.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,603.72 : 68,406.36 = 20,644.68 : x
  2. Step 2: Convert to fraction form
    45,603.72/68,406.36 = 20,644.68/x
  3. Step 3: Cross multiply
    45,603.72x = 68,406.36 × 20,644.68
  4. Step 4: Simplify right side
    45,603.72x = 1,412,227,412.16
  5. Step 5: Solve for x
    x = 1,412,227,412.16/45,603.72
  6. Step 6: Final answer
    x = 30,967.37

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1.5x scale

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.