Home / 67,828.20-101,740.70-18,580.20

Finding the Fourth Proportional to 67,828.20, 101,740.70 and 18,580.20

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Solution

The fourth proportional to 67,828.20, 101,740.70 and 18,580.20 is: 27,869.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,828.20 : 101,740.70 = 18,580.20 : x
  2. Step 2: Convert to fraction form
    67,828.20/101,740.70 = 18,580.20/x
  3. Step 3: Cross multiply
    67,828.20x = 101,740.70 × 18,580.20
  4. Step 4: Simplify right side
    67,828.20x = 1,890,362,554.14
  5. Step 5: Solve for x
    x = 1,890,362,554.14/67,828.20
  6. Step 6: Final answer
    x = 27,869.86

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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.