Home / 90,951.55-125,516.92-50,665.31

Finding the Fourth Proportional to 90,951.55, 125,516.92 and 50,665.31

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Solution

The fourth proportional to 90,951.55, 125,516.92 and 50,665.31 is: 69,920.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,951.55 : 125,516.92 = 50,665.31 : x
  2. Step 2: Convert to fraction form
    90,951.55/125,516.92 = 50,665.31/x
  3. Step 3: Cross multiply
    90,951.55x = 125,516.92 × 50,665.31
  4. Step 4: Simplify right side
    90,951.55x = 6,359,353,034.46
  5. Step 5: Solve for x
    x = 6,359,353,034.46/90,951.55
  6. Step 6: Final answer
    x = 69,920.23

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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.