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Finding the Fourth Proportional to 53,873.64, 80,810.87 and 18,813.33

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Solution

The fourth proportional to 53,873.64, 80,810.87 and 18,813.33 is: 28,220.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,873.64 : 80,810.87 = 18,813.33 : x
  2. Step 2: Convert to fraction form
    53,873.64/80,810.87 = 18,813.33/x
  3. Step 3: Cross multiply
    53,873.64x = 80,810.87 × 18,813.33
  4. Step 4: Simplify right side
    53,873.64x = 1,520,321,470.83
  5. Step 5: Solve for x
    x = 1,520,321,470.83/53,873.64
  6. Step 6: Final answer
    x = 28,220.14

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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.