Home / 54,946.40-82,422.77-21,212.60

Finding the Fourth Proportional to 54,946.40, 82,422.77 and 21,212.60

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Solution

The fourth proportional to 54,946.40, 82,422.77 and 21,212.60 is: 31,820.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,946.40 : 82,422.77 = 21,212.60 : x
  2. Step 2: Convert to fraction form
    54,946.40/82,422.77 = 21,212.60/x
  3. Step 3: Cross multiply
    54,946.40x = 82,422.77 × 21,212.60
  4. Step 4: Simplify right side
    54,946.40x = 1,748,400,732.73
  5. Step 5: Solve for x
    x = 1,748,400,732.73/54,946.40
  6. Step 6: Final answer
    x = 31,820.12

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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.