Home / 114,867.72-172,287.90-30,634.20

Finding the Fourth Proportional to 114,867.72, 172,287.90 and 30,634.20

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Solution

The fourth proportional to 114,867.72, 172,287.90 and 30,634.20 is: 45,947.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,867.72 : 172,287.90 = 30,634.20 : x
  2. Step 2: Convert to fraction form
    114,867.72/172,287.90 = 30,634.20/x
  3. Step 3: Cross multiply
    114,867.72x = 172,287.90 × 30,634.20
  4. Step 4: Simplify right side
    114,867.72x = 5,277,901,986.18
  5. Step 5: Solve for x
    x = 5,277,901,986.18/114,867.72
  6. Step 6: Final answer
    x = 45,947.65

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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.