Home / 79,905.48-119,900.10-30,020.04

Finding the Fourth Proportional to 79,905.48, 119,900.10 and 30,020.04

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Solution

The fourth proportional to 79,905.48, 119,900.10 and 30,020.04 is: 45,045.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,905.48 : 119,900.10 = 30,020.04 : x
  2. Step 2: Convert to fraction form
    79,905.48/119,900.10 = 30,020.04/x
  3. Step 3: Cross multiply
    79,905.48x = 119,900.10 × 30,020.04
  4. Step 4: Simplify right side
    79,905.48x = 3,599,405,798.00
  5. Step 5: Solve for x
    x = 3,599,405,798.00/79,905.48
  6. Step 6: Final answer
    x = 45,045.79

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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.