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Finding the Fourth Proportional to 79,999.35, 119,906.63 and 30,047.56

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Solution

The fourth proportional to 79,999.35, 119,906.63 and 30,047.56 is: 45,036.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,999.35 : 119,906.63 = 30,047.56 : x
  2. Step 2: Convert to fraction form
    79,999.35/119,906.63 = 30,047.56/x
  3. Step 3: Cross multiply
    79,999.35x = 119,906.63 × 30,047.56
  4. Step 4: Simplify right side
    79,999.35x = 3,602,901,322.00
  5. Step 5: Solve for x
    x = 3,602,901,322.00/79,999.35
  6. Step 6: Final answer
    x = 45,036.63

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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.