Home / 84,184.56-126,277.74-21,855.06

Finding the Fourth Proportional to 84,184.56, 126,277.74 and 21,855.06

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Solution

The fourth proportional to 84,184.56, 126,277.74 and 21,855.06 is: 32,782.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,184.56 : 126,277.74 = 21,855.06 : x
  2. Step 2: Convert to fraction form
    84,184.56/126,277.74 = 21,855.06/x
  3. Step 3: Cross multiply
    84,184.56x = 126,277.74 × 21,855.06
  4. Step 4: Simplify right side
    84,184.56x = 2,759,807,584.36
  5. Step 5: Solve for x
    x = 2,759,807,584.36/84,184.56
  6. Step 6: Final answer
    x = 32,782.82

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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.