Home / 74,376.20-111,564.29-18,972.20

Finding the Fourth Proportional to 74,376.20, 111,564.29 and 18,972.20

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Solution

The fourth proportional to 74,376.20, 111,564.29 and 18,972.20 is: 28,458.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,376.20 : 111,564.29 = 18,972.20 : x
  2. Step 2: Convert to fraction form
    74,376.20/111,564.29 = 18,972.20/x
  3. Step 3: Cross multiply
    74,376.20x = 111,564.29 × 18,972.20
  4. Step 4: Simplify right side
    74,376.20x = 2,116,619,370.06
  5. Step 5: Solve for x
    x = 2,116,619,370.06/74,376.20
  6. Step 6: Final answer
    x = 28,458.29

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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.