Home / 115,379.28-173,078.64-36,491.76

Finding the Fourth Proportional to 115,379.28, 173,078.64 and 36,491.76

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Solution

The fourth proportional to 115,379.28, 173,078.64 and 36,491.76 is: 54,740.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,379.28 : 173,078.64 = 36,491.76 : x
  2. Step 2: Convert to fraction form
    115,379.28/173,078.64 = 36,491.76/x
  3. Step 3: Cross multiply
    115,379.28x = 173,078.64 × 36,491.76
  4. Step 4: Simplify right side
    115,379.28x = 6,315,944,192.01
  5. Step 5: Solve for x
    x = 6,315,944,192.01/115,379.28
  6. Step 6: Final answer
    x = 54,740.71

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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.