Home / 61,180.12-91,733.46-21,185.92

Finding the Fourth Proportional to 61,180.12, 91,733.46 and 21,185.92

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Solution

The fourth proportional to 61,180.12, 91,733.46 and 21,185.92 is: 31,766.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,180.12 : 91,733.46 = 21,185.92 : x
  2. Step 2: Convert to fraction form
    61,180.12/91,733.46 = 21,185.92/x
  3. Step 3: Cross multiply
    61,180.12x = 91,733.46 × 21,185.92
  4. Step 4: Simplify right side
    61,180.12x = 1,943,457,744.88
  5. Step 5: Solve for x
    x = 1,943,457,744.88/61,180.12
  6. Step 6: Final answer
    x = 31,766.16

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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.