Home / 53,470.72-80,206.99-20,206.45

Finding the Fourth Proportional to 53,470.72, 80,206.99 and 20,206.45

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Solution

The fourth proportional to 53,470.72, 80,206.99 and 20,206.45 is: 30,310.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,470.72 : 80,206.99 = 20,206.45 : x
  2. Step 2: Convert to fraction form
    53,470.72/80,206.99 = 20,206.45/x
  3. Step 3: Cross multiply
    53,470.72x = 80,206.99 × 20,206.45
  4. Step 4: Simplify right side
    53,470.72x = 1,620,698,533.09
  5. Step 5: Solve for x
    x = 1,620,698,533.09/53,470.72
  6. Step 6: Final answer
    x = 30,310.02

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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.