Home / 55,111.92-76,060.40-31,236.03

Finding the Fourth Proportional to 55,111.92, 76,060.40 and 31,236.03

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Solution

The fourth proportional to 55,111.92, 76,060.40 and 31,236.03 is: 43,109.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,111.92 : 76,060.40 = 31,236.03 : x
  2. Step 2: Convert to fraction form
    55,111.92/76,060.40 = 31,236.03/x
  3. Step 3: Cross multiply
    55,111.92x = 76,060.40 × 31,236.03
  4. Step 4: Simplify right side
    55,111.92x = 2,375,824,936.21
  5. Step 5: Solve for x
    x = 2,375,824,936.21/55,111.92
  6. Step 6: Final answer
    x = 43,109.09

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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.