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Finding the Fourth Proportional to 53,782.40, 80,673.60 and 18,697.40

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Solution

The fourth proportional to 53,782.40, 80,673.60 and 18,697.40 is: 28,046.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,782.40 : 80,673.60 = 18,697.40 : x
  2. Step 2: Convert to fraction form
    53,782.40/80,673.60 = 18,697.40/x
  3. Step 3: Cross multiply
    53,782.40x = 80,673.60 × 18,697.40
  4. Step 4: Simplify right side
    53,782.40x = 1,508,386,568.64
  5. Step 5: Solve for x
    x = 1,508,386,568.64/53,782.40
  6. Step 6: Final answer
    x = 28,046.10

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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.