Home / 57,216.06-78,950.86-31,722.20

Finding the Fourth Proportional to 57,216.06, 78,950.86 and 31,722.20

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Solution

The fourth proportional to 57,216.06, 78,950.86 and 31,722.20 is: 43,772.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,216.06 : 78,950.86 = 31,722.20 : x
  2. Step 2: Convert to fraction form
    57,216.06/78,950.86 = 31,722.20/x
  3. Step 3: Cross multiply
    57,216.06x = 78,950.86 × 31,722.20
  4. Step 4: Simplify right side
    57,216.06x = 2,504,494,971.09
  5. Step 5: Solve for x
    x = 2,504,494,971.09/57,216.06
  6. Step 6: Final answer
    x = 43,772.59

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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.