Home / 57,192.44-78,930.36-31,705.04

Finding the Fourth Proportional to 57,192.44, 78,930.36 and 31,705.04

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Solution

The fourth proportional to 57,192.44, 78,930.36 and 31,705.04 is: 43,755.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,192.44 : 78,930.36 = 31,705.04 : x
  2. Step 2: Convert to fraction form
    57,192.44/78,930.36 = 31,705.04/x
  3. Step 3: Cross multiply
    57,192.44x = 78,930.36 × 31,705.04
  4. Step 4: Simplify right side
    57,192.44x = 2,502,490,221.01
  5. Step 5: Solve for x
    x = 2,502,490,221.01/57,192.44
  6. Step 6: Final answer
    x = 43,755.61

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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.