Home / 66,212.30-91,374.78-35,999.66

Finding the Fourth Proportional to 66,212.30, 91,374.78 and 35,999.66

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Solution

The fourth proportional to 66,212.30, 91,374.78 and 35,999.66 is: 49,680.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,212.30 : 91,374.78 = 35,999.66 : x
  2. Step 2: Convert to fraction form
    66,212.30/91,374.78 = 35,999.66/x
  3. Step 3: Cross multiply
    66,212.30x = 91,374.78 × 35,999.66
  4. Step 4: Simplify right side
    66,212.30x = 3,289,461,012.57
  5. Step 5: Solve for x
    x = 3,289,461,012.57/66,212.30
  6. Step 6: Final answer
    x = 49,680.51

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1.5x scale

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.