Home / 81,579.10-112,540.95-52,907.83

Finding the Fourth Proportional to 81,579.10, 112,540.95 and 52,907.83

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Solution

The fourth proportional to 81,579.10, 112,540.95 and 52,907.83 is: 72,988.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,579.10 : 112,540.95 = 52,907.83 : x
  2. Step 2: Convert to fraction form
    81,579.10/112,540.95 = 52,907.83/x
  3. Step 3: Cross multiply
    81,579.10x = 112,540.95 × 52,907.83
  4. Step 4: Simplify right side
    81,579.10x = 5,954,297,450.64
  5. Step 5: Solve for x
    x = 5,954,297,450.64/81,579.10
  6. Step 6: Final answer
    x = 72,988.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.