Home / 55,086.12-76,015.83-31,212.27

Finding the Fourth Proportional to 55,086.12, 76,015.83 and 31,212.27

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Solution

The fourth proportional to 55,086.12, 76,015.83 and 31,212.27 is: 43,071.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,086.12 : 76,015.83 = 31,212.27 : x
  2. Step 2: Convert to fraction form
    55,086.12/76,015.83 = 31,212.27/x
  3. Step 3: Cross multiply
    55,086.12x = 76,015.83 × 31,212.27
  4. Step 4: Simplify right side
    55,086.12x = 2,372,626,610.23
  5. Step 5: Solve for x
    x = 2,372,626,610.23/55,086.12
  6. Step 6: Final answer
    x = 43,071.22

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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.