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Finding the Fourth Proportional to 53,604.60, 80,406.90 and 50,105.40

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Solution

The fourth proportional to 53,604.60, 80,406.90 and 50,105.40 is: 75,158.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,604.60 : 80,406.90 = 50,105.40 : x
  2. Step 2: Convert to fraction form
    53,604.60/80,406.90 = 50,105.40/x
  3. Step 3: Cross multiply
    53,604.60x = 80,406.90 × 50,105.40
  4. Step 4: Simplify right side
    53,604.60x = 4,028,819,887.26
  5. Step 5: Solve for x
    x = 4,028,819,887.26/53,604.60
  6. Step 6: Final answer
    x = 75,158.10

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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.