Home / 57,874.23-86,838.35-20,462.63

Finding the Fourth Proportional to 57,874.23, 86,838.35 and 20,462.63

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Solution

The fourth proportional to 57,874.23, 86,838.35 and 20,462.63 is: 30,703.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,874.23 : 86,838.35 = 20,462.63 : x
  2. Step 2: Convert to fraction form
    57,874.23/86,838.35 = 20,462.63/x
  3. Step 3: Cross multiply
    57,874.23x = 86,838.35 × 20,462.63
  4. Step 4: Simplify right side
    57,874.23x = 1,776,940,489.36
  5. Step 5: Solve for x
    x = 1,776,940,489.36/57,874.23
  6. Step 6: Final answer
    x = 30,703.48

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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.