Home / 54,011.60-80,892.12-52,142.72

Finding the Fourth Proportional to 54,011.60, 80,892.12 and 52,142.72

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Solution

The fourth proportional to 54,011.60, 80,892.12 and 52,142.72 is: 78,093.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,011.60 : 80,892.12 = 52,142.72 : x
  2. Step 2: Convert to fraction form
    54,011.60/80,892.12 = 52,142.72/x
  3. Step 3: Cross multiply
    54,011.60x = 80,892.12 × 52,142.72
  4. Step 4: Simplify right side
    54,011.60x = 4,217,935,163.37
  5. Step 5: Solve for x
    x = 4,217,935,163.37/54,011.60
  6. Step 6: Final answer
    x = 78,093.13

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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.