Home / 48,606.20-72,900.30-13,538.60

Finding the Fourth Proportional to 48,606.20, 72,900.30 and 13,538.60

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Solution

The fourth proportional to 48,606.20, 72,900.30 and 13,538.60 is: 20,305.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,606.20 : 72,900.30 = 13,538.60 : x
  2. Step 2: Convert to fraction form
    48,606.20/72,900.30 = 13,538.60/x
  3. Step 3: Cross multiply
    48,606.20x = 72,900.30 × 13,538.60
  4. Step 4: Simplify right side
    48,606.20x = 986,968,001.58
  5. Step 5: Solve for x
    x = 986,968,001.58/48,606.20
  6. Step 6: Final answer
    x = 20,305.39

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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.