Home / 56,841.28-85,269.71-19,391.30

Finding the Fourth Proportional to 56,841.28, 85,269.71 and 19,391.30

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Solution

The fourth proportional to 56,841.28, 85,269.71 and 19,391.30 is: 29,089.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,841.28 : 85,269.71 = 19,391.30 : x
  2. Step 2: Convert to fraction form
    56,841.28/85,269.71 = 19,391.30/x
  3. Step 3: Cross multiply
    56,841.28x = 85,269.71 × 19,391.30
  4. Step 4: Simplify right side
    56,841.28x = 1,653,490,481.60
  5. Step 5: Solve for x
    x = 1,653,490,481.60/56,841.28
  6. Step 6: Final answer
    x = 29,089.61

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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.