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Finding the Fourth Proportional to 53,604.99, 80,396.55 and 20,313.59

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Solution

The fourth proportional to 53,604.99, 80,396.55 and 20,313.59 is: 30,466.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,604.99 : 80,396.55 = 20,313.59 : x
  2. Step 2: Convert to fraction form
    53,604.99/80,396.55 = 20,313.59/x
  3. Step 3: Cross multiply
    53,604.99x = 80,396.55 × 20,313.59
  4. Step 4: Simplify right side
    53,604.99x = 1,633,142,152.13
  5. Step 5: Solve for x
    x = 1,633,142,152.13/53,604.99
  6. Step 6: Final answer
    x = 30,466.23

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1.5x scale

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.