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Finding the Fourth Proportional to 72,310.72, 108,464.96 and 25,563.84

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Solution

The fourth proportional to 72,310.72, 108,464.96 and 25,563.84 is: 38,345.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,310.72 : 108,464.96 = 25,563.84 : x
  2. Step 2: Convert to fraction form
    72,310.72/108,464.96 = 25,563.84/x
  3. Step 3: Cross multiply
    72,310.72x = 108,464.96 × 25,563.84
  4. Step 4: Simplify right side
    72,310.72x = 2,772,780,883.05
  5. Step 5: Solve for x
    x = 2,772,780,883.05/72,310.72
  6. Step 6: Final answer
    x = 38,345.36

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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.