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Finding the Fourth Proportional to 81,763.26, 112,842.62 and 45,468.30

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Solution

The fourth proportional to 81,763.26, 112,842.62 and 45,468.30 is: 62,751.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,763.26 : 112,842.62 = 45,468.30 : x
  2. Step 2: Convert to fraction form
    81,763.26/112,842.62 = 45,468.30/x
  3. Step 3: Cross multiply
    81,763.26x = 112,842.62 × 45,468.30
  4. Step 4: Simplify right side
    81,763.26x = 5,130,762,098.95
  5. Step 5: Solve for x
    x = 5,130,762,098.95/81,763.26
  6. Step 6: Final answer
    x = 62,751.44

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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.