Home / 51,261.51-70,740.98-30,040.80

Finding the Fourth Proportional to 51,261.51, 70,740.98 and 30,040.80

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Solution

The fourth proportional to 51,261.51, 70,740.98 and 30,040.80 is: 41,456.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,261.51 : 70,740.98 = 30,040.80 : x
  2. Step 2: Convert to fraction form
    51,261.51/70,740.98 = 30,040.80/x
  3. Step 3: Cross multiply
    51,261.51x = 70,740.98 × 30,040.80
  4. Step 4: Simplify right side
    51,261.51x = 2,125,115,481.78
  5. Step 5: Solve for x
    x = 2,125,115,481.78/51,261.51
  6. Step 6: Final answer
    x = 41,456.36

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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.