Home / 55,081.70-76,012.54-31,212.93

Finding the Fourth Proportional to 55,081.70, 76,012.54 and 31,212.93

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Solution

The fourth proportional to 55,081.70, 76,012.54 and 31,212.93 is: 43,073.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,081.70 : 76,012.54 = 31,212.93 : x
  2. Step 2: Convert to fraction form
    55,081.70/76,012.54 = 31,212.93/x
  3. Step 3: Cross multiply
    55,081.70x = 76,012.54 × 31,212.93
  4. Step 4: Simplify right side
    55,081.70x = 2,372,574,090.14
  5. Step 5: Solve for x
    x = 2,372,574,090.14/55,081.70
  6. Step 6: Final answer
    x = 43,073.73

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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.