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Finding the Fourth Proportional to 57,813.40, 86,720.10 and 16,260.40

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Solution

The fourth proportional to 57,813.40, 86,720.10 and 16,260.40 is: 24,390.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,813.40 : 86,720.10 = 16,260.40 : x
  2. Step 2: Convert to fraction form
    57,813.40/86,720.10 = 16,260.40/x
  3. Step 3: Cross multiply
    57,813.40x = 86,720.10 × 16,260.40
  4. Step 4: Simplify right side
    57,813.40x = 1,410,103,514.04
  5. Step 5: Solve for x
    x = 1,410,103,514.04/57,813.40
  6. Step 6: Final answer
    x = 24,390.60

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.