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Finding the Fourth Proportional to 53,508.54, 80,268.11 and 19,783.40

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Solution

The fourth proportional to 53,508.54, 80,268.11 and 19,783.40 is: 29,677.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,508.54 : 80,268.11 = 19,783.40 : x
  2. Step 2: Convert to fraction form
    53,508.54/80,268.11 = 19,783.40/x
  3. Step 3: Cross multiply
    53,508.54x = 80,268.11 × 19,783.40
  4. Step 4: Simplify right side
    53,508.54x = 1,587,976,127.37
  5. Step 5: Solve for x
    x = 1,587,976,127.37/53,508.54
  6. Step 6: Final answer
    x = 29,677.06

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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.