Home / 48,918.40-73,291.20-30,428.80

Finding the Fourth Proportional to 48,918.40, 73,291.20 and 30,428.80

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Solution

The fourth proportional to 48,918.40, 73,291.20 and 30,428.80 is: 45,589.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,918.40 : 73,291.20 = 30,428.80 : x
  2. Step 2: Convert to fraction form
    48,918.40/73,291.20 = 30,428.80/x
  3. Step 3: Cross multiply
    48,918.40x = 73,291.20 × 30,428.80
  4. Step 4: Simplify right side
    48,918.40x = 2,230,163,266.56
  5. Step 5: Solve for x
    x = 2,230,163,266.56/48,918.40
  6. Step 6: Final answer
    x = 45,589.46

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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.