Home / 57,846.12-86,776.10-20,398.44

Finding the Fourth Proportional to 57,846.12, 86,776.10 and 20,398.44

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Solution

The fourth proportional to 57,846.12, 86,776.10 and 20,398.44 is: 30,600.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,846.12 : 86,776.10 = 20,398.44 : x
  2. Step 2: Convert to fraction form
    57,846.12/86,776.10 = 20,398.44/x
  3. Step 3: Cross multiply
    57,846.12x = 86,776.10 × 20,398.44
  4. Step 4: Simplify right side
    57,846.12x = 1,770,097,069.28
  5. Step 5: Solve for x
    x = 1,770,097,069.28/57,846.12
  6. Step 6: Final answer
    x = 30,600.10

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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.