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Finding the Fourth Proportional to 71,741.60, 107,563.80 and 36,652.40

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Solution

The fourth proportional to 71,741.60, 107,563.80 and 36,652.40 is: 54,953.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,741.60 : 107,563.80 = 36,652.40 : x
  2. Step 2: Convert to fraction form
    71,741.60/107,563.80 = 36,652.40/x
  3. Step 3: Cross multiply
    71,741.60x = 107,563.80 × 36,652.40
  4. Step 4: Simplify right side
    71,741.60x = 3,942,471,423.12
  5. Step 5: Solve for x
    x = 3,942,471,423.12/71,741.60
  6. Step 6: Final answer
    x = 54,953.77

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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.