Home / 53,170.91-73,375.07-30,509.40

Finding the Fourth Proportional to 53,170.91, 73,375.07 and 30,509.40

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Solution

The fourth proportional to 53,170.91, 73,375.07 and 30,509.40 is: 42,102.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,170.91 : 73,375.07 = 30,509.40 : x
  2. Step 2: Convert to fraction form
    53,170.91/73,375.07 = 30,509.40/x
  3. Step 3: Cross multiply
    53,170.91x = 73,375.07 × 30,509.40
  4. Step 4: Simplify right side
    53,170.91x = 2,238,629,208.11
  5. Step 5: Solve for x
    x = 2,238,629,208.11/53,170.91
  6. Step 6: Final answer
    x = 42,102.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.