Home / 81,863.03-112,929.63-47,849.30

Finding the Fourth Proportional to 81,863.03, 112,929.63 and 47,849.30

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Solution

The fourth proportional to 81,863.03, 112,929.63 and 47,849.30 is: 66,007.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,863.03 : 112,929.63 = 47,849.30 : x
  2. Step 2: Convert to fraction form
    81,863.03/112,929.63 = 47,849.30/x
  3. Step 3: Cross multiply
    81,863.03x = 112,929.63 × 47,849.30
  4. Step 4: Simplify right side
    81,863.03x = 5,403,603,000.68
  5. Step 5: Solve for x
    x = 5,403,603,000.68/81,863.03
  6. Step 6: Final answer
    x = 66,007.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.