Home / 91,091.25-125,722.94-53,365.50

Finding the Fourth Proportional to 91,091.25, 125,722.94 and 53,365.50

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Solution

The fourth proportional to 91,091.25, 125,722.94 and 53,365.50 is: 73,654.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,091.25 : 125,722.94 = 53,365.50 : x
  2. Step 2: Convert to fraction form
    91,091.25/125,722.94 = 53,365.50/x
  3. Step 3: Cross multiply
    91,091.25x = 125,722.94 × 53,365.50
  4. Step 4: Simplify right side
    91,091.25x = 6,709,267,287.74
  5. Step 5: Solve for x
    x = 6,709,267,287.74/91,091.25
  6. Step 6: Final answer
    x = 73,654.36

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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.