Home / 61,220.30-91,788.52-31,176.38

Finding the Fourth Proportional to 61,220.30, 91,788.52 and 31,176.38

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Solution

The fourth proportional to 61,220.30, 91,788.52 and 31,176.38 is: 46,743.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,220.30 : 91,788.52 = 31,176.38 : x
  2. Step 2: Convert to fraction form
    61,220.30/91,788.52 = 31,176.38/x
  3. Step 3: Cross multiply
    61,220.30x = 91,788.52 × 31,176.38
  4. Step 4: Simplify right side
    61,220.30x = 2,861,633,164.33
  5. Step 5: Solve for x
    x = 2,861,633,164.33/61,220.30
  6. Step 6: Final answer
    x = 46,743.21

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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.