Home / 53,620.20-80,495.10-53,231.40

Finding the Fourth Proportional to 53,620.20, 80,495.10 and 53,231.40

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Solution

The fourth proportional to 53,620.20, 80,495.10 and 53,231.40 is: 79,911.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,620.20 : 80,495.10 = 53,231.40 : x
  2. Step 2: Convert to fraction form
    53,620.20/80,495.10 = 53,231.40/x
  3. Step 3: Cross multiply
    53,620.20x = 80,495.10 × 53,231.40
  4. Step 4: Simplify right side
    53,620.20x = 4,284,866,866.14
  5. Step 5: Solve for x
    x = 4,284,866,866.14/53,620.20
  6. Step 6: Final answer
    x = 79,911.43

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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.