Home / 56,668.31-78,202.43-31,176.33

Finding the Fourth Proportional to 56,668.31, 78,202.43 and 31,176.33

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Solution

The fourth proportional to 56,668.31, 78,202.43 and 31,176.33 is: 43,023.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,668.31 : 78,202.43 = 31,176.33 : x
  2. Step 2: Convert to fraction form
    56,668.31/78,202.43 = 31,176.33/x
  3. Step 3: Cross multiply
    56,668.31x = 78,202.43 × 31,176.33
  4. Step 4: Simplify right side
    56,668.31x = 2,438,064,432.25
  5. Step 5: Solve for x
    x = 2,438,064,432.25/56,668.31
  6. Step 6: Final answer
    x = 43,023.42

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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.