Home / 57,215.37-78,958.23-31,376.02

Finding the Fourth Proportional to 57,215.37, 78,958.23 and 31,376.02

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Solution

The fourth proportional to 57,215.37, 78,958.23 and 31,376.02 is: 43,299.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,215.37 : 78,958.23 = 31,376.02 : x
  2. Step 2: Convert to fraction form
    57,215.37/78,958.23 = 31,376.02/x
  3. Step 3: Cross multiply
    57,215.37x = 78,958.23 × 31,376.02
  4. Step 4: Simplify right side
    57,215.37x = 2,477,395,003.64
  5. Step 5: Solve for x
    x = 2,477,395,003.64/57,215.37
  6. Step 6: Final answer
    x = 43,299.47

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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.