Home / 55,078.07-76,006.25-31,212.42

Finding the Fourth Proportional to 55,078.07, 76,006.25 and 31,212.42

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Solution

The fourth proportional to 55,078.07, 76,006.25 and 31,212.42 is: 43,072.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,078.07 : 76,006.25 = 31,212.42 : x
  2. Step 2: Convert to fraction form
    55,078.07/76,006.25 = 31,212.42/x
  3. Step 3: Cross multiply
    55,078.07x = 76,006.25 × 31,212.42
  4. Step 4: Simplify right side
    55,078.07x = 2,372,338,841.56
  5. Step 5: Solve for x
    x = 2,372,338,841.56/55,078.07
  6. Step 6: Final answer
    x = 43,072.30

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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.