Home / 318,025.07-477,035.17-81,367.37

Finding the Fourth Proportional to 318,025.07, 477,035.17 and 81,367.37

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Solution

The fourth proportional to 318,025.07, 477,035.17 and 81,367.37 is: 122,050.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,025.07 : 477,035.17 = 81,367.37 : x
  2. Step 2: Convert to fraction form
    318,025.07/477,035.17 = 81,367.37/x
  3. Step 3: Cross multiply
    318,025.07x = 477,035.17 × 81,367.37
  4. Step 4: Simplify right side
    318,025.07x = 38,815,094,591.81
  5. Step 5: Solve for x
    x = 38,815,094,591.81/318,025.07
  6. Step 6: Final answer
    x = 122,050.43

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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.