Home / 82,945.44-124,431.84-30,428.64

Finding the Fourth Proportional to 82,945.44, 124,431.84 and 30,428.64

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Solution

The fourth proportional to 82,945.44, 124,431.84 and 30,428.64 is: 45,647.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,945.44 : 124,431.84 = 30,428.64 : x
  2. Step 2: Convert to fraction form
    82,945.44/124,431.84 = 30,428.64/x
  3. Step 3: Cross multiply
    82,945.44x = 124,431.84 × 30,428.64
  4. Step 4: Simplify right side
    82,945.44x = 3,786,291,663.90
  5. Step 5: Solve for x
    x = 3,786,291,663.90/82,945.44
  6. Step 6: Final answer
    x = 45,647.98

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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.