Home / 82,907.40-124,346.70-30,289.80

Finding the Fourth Proportional to 82,907.40, 124,346.70 and 30,289.80

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Solution

The fourth proportional to 82,907.40, 124,346.70 and 30,289.80 is: 45,429.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,907.40 : 124,346.70 = 30,289.80 : x
  2. Step 2: Convert to fraction form
    82,907.40/124,346.70 = 30,289.80/x
  3. Step 3: Cross multiply
    82,907.40x = 124,346.70 × 30,289.80
  4. Step 4: Simplify right side
    82,907.40x = 3,766,436,673.66
  5. Step 5: Solve for x
    x = 3,766,436,673.66/82,907.40
  6. Step 6: Final answer
    x = 45,429.44

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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.