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Finding the Fourth Proportional to 81,365.63, 122,050.62 and 25,961.63

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Solution

The fourth proportional to 81,365.63, 122,050.62 and 25,961.63 is: 38,943.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,365.63 : 122,050.62 = 25,961.63 : x
  2. Step 2: Convert to fraction form
    81,365.63/122,050.62 = 25,961.63/x
  3. Step 3: Cross multiply
    81,365.63x = 122,050.62 × 25,961.63
  4. Step 4: Simplify right side
    81,365.63x = 3,168,632,427.46
  5. Step 5: Solve for x
    x = 3,168,632,427.46/81,365.63
  6. Step 6: Final answer
    x = 38,943.13

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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.