Home / 72,427.50-108,563.22-30,296.70

Finding the Fourth Proportional to 72,427.50, 108,563.22 and 30,296.70

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Solution

The fourth proportional to 72,427.50, 108,563.22 and 30,296.70 is: 45,412.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,427.50 : 108,563.22 = 30,296.70 : x
  2. Step 2: Convert to fraction form
    72,427.50/108,563.22 = 30,296.70/x
  3. Step 3: Cross multiply
    72,427.50x = 108,563.22 × 30,296.70
  4. Step 4: Simplify right side
    72,427.50x = 3,289,107,307.37
  5. Step 5: Solve for x
    x = 3,289,107,307.37/72,427.50
  6. Step 6: Final answer
    x = 45,412.41

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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.