Home / 57,982.80-86,969.34-18,529.32

Finding the Fourth Proportional to 57,982.80, 86,969.34 and 18,529.32

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Solution

The fourth proportional to 57,982.80, 86,969.34 and 18,529.32 is: 27,792.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,982.80 : 86,969.34 = 18,529.32 : x
  2. Step 2: Convert to fraction form
    57,982.80/86,969.34 = 18,529.32/x
  3. Step 3: Cross multiply
    57,982.80x = 86,969.34 × 18,529.32
  4. Step 4: Simplify right side
    57,982.80x = 1,611,482,731.05
  5. Step 5: Solve for x
    x = 1,611,482,731.05/57,982.80
  6. Step 6: Final answer
    x = 27,792.43

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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.