Home / 83,425.70-125,137.51-20,246.36

Finding the Fourth Proportional to 83,425.70, 125,137.51 and 20,246.36

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Solution

The fourth proportional to 83,425.70, 125,137.51 and 20,246.36 is: 30,369.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,425.70 : 125,137.51 = 20,246.36 : x
  2. Step 2: Convert to fraction form
    83,425.70/125,137.51 = 20,246.36/x
  3. Step 3: Cross multiply
    83,425.70x = 125,137.51 × 20,246.36
  4. Step 4: Simplify right side
    83,425.70x = 2,533,578,400.66
  5. Step 5: Solve for x
    x = 2,533,578,400.66/83,425.70
  6. Step 6: Final answer
    x = 30,369.28

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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.