Home / 48,930.40-73,309.20-30,440.80

Finding the Fourth Proportional to 48,930.40, 73,309.20 and 30,440.80

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Solution

The fourth proportional to 48,930.40, 73,309.20 and 30,440.80 is: 45,607.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,930.40 : 73,309.20 = 30,440.80 : x
  2. Step 2: Convert to fraction form
    48,930.40/73,309.20 = 30,440.80/x
  3. Step 3: Cross multiply
    48,930.40x = 73,309.20 × 30,440.80
  4. Step 4: Simplify right side
    48,930.40x = 2,231,590,695.36
  5. Step 5: Solve for x
    x = 2,231,590,695.36/48,930.40
  6. Step 6: Final answer
    x = 45,607.45

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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.