Home / 57,384.44-79,190.40-31,890.72

Finding the Fourth Proportional to 57,384.44, 79,190.40 and 31,890.72

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Solution

The fourth proportional to 57,384.44, 79,190.40 and 31,890.72 is: 44,009.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,384.44 : 79,190.40 = 31,890.72 : x
  2. Step 2: Convert to fraction form
    57,384.44/79,190.40 = 31,890.72/x
  3. Step 3: Cross multiply
    57,384.44x = 79,190.40 × 31,890.72
  4. Step 4: Simplify right side
    57,384.44x = 2,525,438,873.09
  5. Step 5: Solve for x
    x = 2,525,438,873.09/57,384.44
  6. Step 6: Final answer
    x = 44,009.12

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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.