Home / 72,243.06-108,294.12-30,135.24

Finding the Fourth Proportional to 72,243.06, 108,294.12 and 30,135.24

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Solution

The fourth proportional to 72,243.06, 108,294.12 and 30,135.24 is: 45,173.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,243.06 : 108,294.12 = 30,135.24 : x
  2. Step 2: Convert to fraction form
    72,243.06/108,294.12 = 30,135.24/x
  3. Step 3: Cross multiply
    72,243.06x = 108,294.12 × 30,135.24
  4. Step 4: Simplify right side
    72,243.06x = 3,263,469,296.79
  5. Step 5: Solve for x
    x = 3,263,469,296.79/72,243.06
  6. Step 6: Final answer
    x = 45,173.46

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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.