Home / 91,077.81-125,687.13-50,791.62

Finding the Fourth Proportional to 91,077.81, 125,687.13 and 50,791.62

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Solution

The fourth proportional to 91,077.81, 125,687.13 and 50,791.62 is: 70,092.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,077.81 : 125,687.13 = 50,791.62 : x
  2. Step 2: Convert to fraction form
    91,077.81/125,687.13 = 50,791.62/x
  3. Step 3: Cross multiply
    91,077.81x = 125,687.13 × 50,791.62
  4. Step 4: Simplify right side
    91,077.81x = 6,383,852,317.41
  5. Step 5: Solve for x
    x = 6,383,852,317.41/91,077.81
  6. Step 6: Final answer
    x = 70,092.29

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1.5x scale

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.