Home / 57,005.82-78,667.47-31,855.32

Finding the Fourth Proportional to 57,005.82, 78,667.47 and 31,855.32

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Solution

The fourth proportional to 57,005.82, 78,667.47 and 31,855.32 is: 43,960.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,005.82 : 78,667.47 = 31,855.32 : x
  2. Step 2: Convert to fraction form
    57,005.82/78,667.47 = 31,855.32/x
  3. Step 3: Cross multiply
    57,005.82x = 78,667.47 × 31,855.32
  4. Step 4: Simplify right side
    57,005.82x = 2,505,977,430.44
  5. Step 5: Solve for x
    x = 2,505,977,430.44/57,005.82
  6. Step 6: Final answer
    x = 43,960.03

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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.