Home / 91,171.80-125,828.46-55,359.48

Finding the Fourth Proportional to 91,171.80, 125,828.46 and 55,359.48

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Solution

The fourth proportional to 91,171.80, 125,828.46 and 55,359.48 is: 76,402.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,171.80 : 125,828.46 = 55,359.48 : x
  2. Step 2: Convert to fraction form
    91,171.80/125,828.46 = 55,359.48/x
  3. Step 3: Cross multiply
    91,171.80x = 125,828.46 × 55,359.48
  4. Step 4: Simplify right side
    91,171.80x = 6,965,798,114.80
  5. Step 5: Solve for x
    x = 6,965,798,114.80/91,171.80
  6. Step 6: Final answer
    x = 76,402.99

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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.