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Finding the Fourth Proportional to 53,674.54, 80,479.91 and 20,397.05

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Solution

The fourth proportional to 53,674.54, 80,479.91 and 20,397.05 is: 30,583.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,674.54 : 80,479.91 = 20,397.05 : x
  2. Step 2: Convert to fraction form
    53,674.54/80,479.91 = 20,397.05/x
  3. Step 3: Cross multiply
    53,674.54x = 80,479.91 × 20,397.05
  4. Step 4: Simplify right side
    53,674.54x = 1,641,552,748.27
  5. Step 5: Solve for x
    x = 1,641,552,748.27/53,674.54
  6. Step 6: Final answer
    x = 30,583.45

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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.