Home / 91,042.77-125,629.95-55,230.65

Finding the Fourth Proportional to 91,042.77, 125,629.95 and 55,230.65

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Solution

The fourth proportional to 91,042.77, 125,629.95 and 55,230.65 is: 76,212.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,042.77 : 125,629.95 = 55,230.65 : x
  2. Step 2: Convert to fraction form
    91,042.77/125,629.95 = 55,230.65/x
  3. Step 3: Cross multiply
    91,042.77x = 125,629.95 × 55,230.65
  4. Step 4: Simplify right side
    91,042.77x = 6,938,623,797.97
  5. Step 5: Solve for x
    x = 6,938,623,797.97/91,042.77
  6. Step 6: Final answer
    x = 76,212.79

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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.