Home / 57,795.40-86,675.82-30,078.28

Finding the Fourth Proportional to 57,795.40, 86,675.82 and 30,078.28

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Solution

The fourth proportional to 57,795.40, 86,675.82 and 30,078.28 is: 45,108.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,795.40 : 86,675.82 = 30,078.28 : x
  2. Step 2: Convert to fraction form
    57,795.40/86,675.82 = 30,078.28/x
  3. Step 3: Cross multiply
    57,795.40x = 86,675.82 × 30,078.28
  4. Step 4: Simplify right side
    57,795.40x = 2,607,059,583.19
  5. Step 5: Solve for x
    x = 2,607,059,583.19/57,795.40
  6. Step 6: Final answer
    x = 45,108.43

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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.