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Finding the Fourth Proportional to 53,150.40, 79,725.60 and 36,561.60

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Solution

The fourth proportional to 53,150.40, 79,725.60 and 36,561.60 is: 54,842.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,150.40 : 79,725.60 = 36,561.60 : x
  2. Step 2: Convert to fraction form
    53,150.40/79,725.60 = 36,561.60/x
  3. Step 3: Cross multiply
    53,150.40x = 79,725.60 × 36,561.60
  4. Step 4: Simplify right side
    53,150.40x = 2,914,895,496.96
  5. Step 5: Solve for x
    x = 2,914,895,496.96/53,150.40
  6. Step 6: Final answer
    x = 54,842.40

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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.