Home / 56,673.47-78,206.31-31,175.69

Finding the Fourth Proportional to 56,673.47, 78,206.31 and 31,175.69

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Solution

The fourth proportional to 56,673.47, 78,206.31 and 31,175.69 is: 43,020.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,673.47 : 78,206.31 = 31,175.69 : x
  2. Step 2: Convert to fraction form
    56,673.47/78,206.31 = 31,175.69/x
  3. Step 3: Cross multiply
    56,673.47x = 78,206.31 × 31,175.69
  4. Step 4: Simplify right side
    56,673.47x = 2,438,135,285.57
  5. Step 5: Solve for x
    x = 2,438,135,285.57/56,673.47
  6. Step 6: Final answer
    x = 43,020.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.