Home / 57,242.72-78,999.54-31,751.60

Finding the Fourth Proportional to 57,242.72, 78,999.54 and 31,751.60

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Solution

The fourth proportional to 57,242.72, 78,999.54 and 31,751.60 is: 43,819.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,242.72 : 78,999.54 = 31,751.60 : x
  2. Step 2: Convert to fraction form
    57,242.72/78,999.54 = 31,751.60/x
  3. Step 3: Cross multiply
    57,242.72x = 78,999.54 × 31,751.60
  4. Step 4: Simplify right side
    57,242.72x = 2,508,361,794.26
  5. Step 5: Solve for x
    x = 2,508,361,794.26/57,242.72
  6. Step 6: Final answer
    x = 43,819.75

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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.