Home / 115,289.06-172,934.40-36,409.64

Finding the Fourth Proportional to 115,289.06, 172,934.40 and 36,409.64

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Solution

The fourth proportional to 115,289.06, 172,934.40 and 36,409.64 is: 54,614.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,289.06 : 172,934.40 = 36,409.64 : x
  2. Step 2: Convert to fraction form
    115,289.06/172,934.40 = 36,409.64/x
  3. Step 3: Cross multiply
    115,289.06x = 172,934.40 × 36,409.64
  4. Step 4: Simplify right side
    115,289.06x = 6,296,479,247.62
  5. Step 5: Solve for x
    x = 6,296,479,247.62/115,289.06
  6. Step 6: Final answer
    x = 54,614.72

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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.