Home / 91,128.92-125,757.52-50,842.71

Finding the Fourth Proportional to 91,128.92, 125,757.52 and 50,842.71

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Solution

The fourth proportional to 91,128.92, 125,757.52 and 50,842.71 is: 70,162.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,128.92 : 125,757.52 = 50,842.71 : x
  2. Step 2: Convert to fraction form
    91,128.92/125,757.52 = 50,842.71/x
  3. Step 3: Cross multiply
    91,128.92x = 125,757.52 × 50,842.71
  4. Step 4: Simplify right side
    91,128.92x = 6,393,852,992.57
  5. Step 5: Solve for x
    x = 6,393,852,992.57/91,128.92
  6. Step 6: Final answer
    x = 70,162.72

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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.