Home / 48,718.40-73,072.20-13,661.60

Finding the Fourth Proportional to 48,718.40, 73,072.20 and 13,661.60

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Solution

The fourth proportional to 48,718.40, 73,072.20 and 13,661.60 is: 20,490.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,718.40 : 73,072.20 = 13,661.60 : x
  2. Step 2: Convert to fraction form
    48,718.40/73,072.20 = 13,661.60/x
  3. Step 3: Cross multiply
    48,718.40x = 73,072.20 × 13,661.60
  4. Step 4: Simplify right side
    48,718.40x = 998,283,167.52
  5. Step 5: Solve for x
    x = 998,283,167.52/48,718.40
  6. Step 6: Final answer
    x = 20,490.89

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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.