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Finding the Fourth Proportional to 79,907.48, 119,903.08 and 30,022

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Solution

The fourth proportional to 79,907.48, 119,903.08 and 30,022 is: 45,048.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,907.48 : 119,903.08 = 30,022 : x
  2. Step 2: Convert to fraction form
    79,907.48/119,903.08 = 30,022/x
  3. Step 3: Cross multiply
    79,907.48x = 119,903.08 × 30,022
  4. Step 4: Simplify right side
    79,907.48x = 3,599,730,267.76
  5. Step 5: Solve for x
    x = 3,599,730,267.76/79,907.48
  6. Step 6: Final answer
    x = 45,048.73

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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.