Home / 86,921.50-119,951.67-47,177.50

Finding the Fourth Proportional to 86,921.50, 119,951.67 and 47,177.50

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Solution

The fourth proportional to 86,921.50, 119,951.67 and 47,177.50 is: 65,104.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,921.50 : 119,951.67 = 47,177.50 : x
  2. Step 2: Convert to fraction form
    86,921.50/119,951.67 = 47,177.50/x
  3. Step 3: Cross multiply
    86,921.50x = 119,951.67 × 47,177.50
  4. Step 4: Simplify right side
    86,921.50x = 5,659,019,911.43
  5. Step 5: Solve for x
    x = 5,659,019,911.43/86,921.50
  6. Step 6: Final answer
    x = 65,104.95

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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.