Home / 91,128.41-125,762.79-50,842.25

Finding the Fourth Proportional to 91,128.41, 125,762.79 and 50,842.25

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Solution

The fourth proportional to 91,128.41, 125,762.79 and 50,842.25 is: 70,165.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,128.41 : 125,762.79 = 50,842.25 : x
  2. Step 2: Convert to fraction form
    91,128.41/125,762.79 = 50,842.25/x
  3. Step 3: Cross multiply
    91,128.41x = 125,762.79 × 50,842.25
  4. Step 4: Simplify right side
    91,128.41x = 6,394,062,581.06
  5. Step 5: Solve for x
    x = 6,394,062,581.06/91,128.41
  6. Step 6: Final answer
    x = 70,165.42

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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.