Home / 57,124.66-85,690.62-17,678.46

Finding the Fourth Proportional to 57,124.66, 85,690.62 and 17,678.46

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Solution

The fourth proportional to 57,124.66, 85,690.62 and 17,678.46 is: 26,518.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,124.66 : 85,690.62 = 17,678.46 : x
  2. Step 2: Convert to fraction form
    57,124.66/85,690.62 = 17,678.46/x
  3. Step 3: Cross multiply
    57,124.66x = 85,690.62 × 17,678.46
  4. Step 4: Simplify right side
    57,124.66x = 1,514,878,198.05
  5. Step 5: Solve for x
    x = 1,514,878,198.05/57,124.66
  6. Step 6: Final answer
    x = 26,518.81

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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.