Home / 81,440.44-112,394.70-45,629.92

Finding the Fourth Proportional to 81,440.44, 112,394.70 and 45,629.92

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Solution

The fourth proportional to 81,440.44, 112,394.70 and 45,629.92 is: 62,973.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,440.44 : 112,394.70 = 45,629.92 : x
  2. Step 2: Convert to fraction form
    81,440.44/112,394.70 = 45,629.92/x
  3. Step 3: Cross multiply
    81,440.44x = 112,394.70 × 45,629.92
  4. Step 4: Simplify right side
    81,440.44x = 5,128,561,169.42
  5. Step 5: Solve for x
    x = 5,128,561,169.42/81,440.44
  6. Step 6: Final answer
    x = 62,973.15

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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.