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Finding the Fourth Proportional to 69,777.78, 104,664.30 and 30,334.86

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Solution

The fourth proportional to 69,777.78, 104,664.30 and 30,334.86 is: 45,501.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,777.78 : 104,664.30 = 30,334.86 : x
  2. Step 2: Convert to fraction form
    69,777.78/104,664.30 = 30,334.86/x
  3. Step 3: Cross multiply
    69,777.78x = 104,664.30 × 30,334.86
  4. Step 4: Simplify right side
    69,777.78x = 3,174,976,887.50
  5. Step 5: Solve for x
    x = 3,174,976,887.50/69,777.78
  6. Step 6: Final answer
    x = 45,501.26

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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.