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Finding the Fourth Proportional to 82,647.12, 114,107.95 and 63,492.78

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Solution

The fourth proportional to 82,647.12, 114,107.95 and 63,492.78 is: 87,662.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,647.12 : 114,107.95 = 63,492.78 : x
  2. Step 2: Convert to fraction form
    82,647.12/114,107.95 = 63,492.78/x
  3. Step 3: Cross multiply
    82,647.12x = 114,107.95 × 63,492.78
  4. Step 4: Simplify right side
    82,647.12x = 7,245,030,965.60
  5. Step 5: Solve for x
    x = 7,245,030,965.60/82,647.12
  6. Step 6: Final answer
    x = 87,662.23

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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.