Home / 51,261.78-70,741.31-30,041.07

Finding the Fourth Proportional to 51,261.78, 70,741.31 and 30,041.07

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Solution

The fourth proportional to 51,261.78, 70,741.31 and 30,041.07 is: 41,456.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,261.78 : 70,741.31 = 30,041.07 : x
  2. Step 2: Convert to fraction form
    51,261.78/70,741.31 = 30,041.07/x
  3. Step 3: Cross multiply
    51,261.78x = 70,741.31 × 30,041.07
  4. Step 4: Simplify right side
    51,261.78x = 2,125,144,645.60
  5. Step 5: Solve for x
    x = 2,125,144,645.60/51,261.78
  6. Step 6: Final answer
    x = 41,456.71

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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.