Home / 48,663.20-72,879.60-30,000.80

Finding the Fourth Proportional to 48,663.20, 72,879.60 and 30,000.80

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Solution

The fourth proportional to 48,663.20, 72,879.60 and 30,000.80 is: 44,930.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,663.20 : 72,879.60 = 30,000.80 : x
  2. Step 2: Convert to fraction form
    48,663.20/72,879.60 = 30,000.80/x
  3. Step 3: Cross multiply
    48,663.20x = 72,879.60 × 30,000.80
  4. Step 4: Simplify right side
    48,663.20x = 2,186,446,303.68
  5. Step 5: Solve for x
    x = 2,186,446,303.68/48,663.20
  6. Step 6: Final answer
    x = 44,930.18

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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.