Home / 73,203.12-109,831-28,805.28

Finding the Fourth Proportional to 73,203.12, 109,831 and 28,805.28

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Solution

The fourth proportional to 73,203.12, 109,831 and 28,805.28 is: 43,218.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,203.12 : 109,831 = 28,805.28 : x
  2. Step 2: Convert to fraction form
    73,203.12/109,831 = 28,805.28/x
  3. Step 3: Cross multiply
    73,203.12x = 109,831 × 28,805.28
  4. Step 4: Simplify right side
    73,203.12x = 3,163,712,707.68
  5. Step 5: Solve for x
    x = 3,163,712,707.68/73,203.12
  6. Step 6: Final answer
    x = 43,218.28

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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.