Home / 45,603.72-68,406.12-14,431.68

Finding the Fourth Proportional to 45,603.72, 68,406.12 and 14,431.68

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Solution

The fourth proportional to 45,603.72, 68,406.12 and 14,431.68 is: 21,647.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,603.72 : 68,406.12 = 14,431.68 : x
  2. Step 2: Convert to fraction form
    45,603.72/68,406.12 = 14,431.68/x
  3. Step 3: Cross multiply
    45,603.72x = 68,406.12 × 14,431.68
  4. Step 4: Simplify right side
    45,603.72x = 987,215,233.88
  5. Step 5: Solve for x
    x = 987,215,233.88/45,603.72
  6. Step 6: Final answer
    x = 21,647.69

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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.