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Finding the Fourth Proportional to 52,644.45, 79,004.76 and 20,628.30

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Solution

The fourth proportional to 52,644.45, 79,004.76 and 20,628.30 is: 30,957.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,644.45 : 79,004.76 = 20,628.30 : x
  2. Step 2: Convert to fraction form
    52,644.45/79,004.76 = 20,628.30/x
  3. Step 3: Cross multiply
    52,644.45x = 79,004.76 × 20,628.30
  4. Step 4: Simplify right side
    52,644.45x = 1,629,733,890.71
  5. Step 5: Solve for x
    x = 1,629,733,890.71/52,644.45
  6. Step 6: Final answer
    x = 30,957.37

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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.