Home / 91,081.26-125,707.39-55,295.11

Finding the Fourth Proportional to 91,081.26, 125,707.39 and 55,295.11

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Solution

The fourth proportional to 91,081.26, 125,707.39 and 55,295.11 is: 76,316.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,081.26 : 125,707.39 = 55,295.11 : x
  2. Step 2: Convert to fraction form
    91,081.26/125,707.39 = 55,295.11/x
  3. Step 3: Cross multiply
    91,081.26x = 125,707.39 × 55,295.11
  4. Step 4: Simplify right side
    91,081.26x = 6,951,003,580.69
  5. Step 5: Solve for x
    x = 6,951,003,580.69/91,081.26
  6. Step 6: Final answer
    x = 76,316.51

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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.