Home / 84,686.21-126,918.57-34,707.79

Finding the Fourth Proportional to 84,686.21, 126,918.57 and 34,707.79

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Solution

The fourth proportional to 84,686.21, 126,918.57 and 34,707.79 is: 52,016.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,686.21 : 126,918.57 = 34,707.79 : x
  2. Step 2: Convert to fraction form
    84,686.21/126,918.57 = 34,707.79/x
  3. Step 3: Cross multiply
    84,686.21x = 126,918.57 × 34,707.79
  4. Step 4: Simplify right side
    84,686.21x = 4,405,063,074.66
  5. Step 5: Solve for x
    x = 4,405,063,074.66/84,686.21
  6. Step 6: Final answer
    x = 52,016.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.