Home / 86,921.89-130,382.84-55,953.97

Finding the Fourth Proportional to 86,921.89, 130,382.84 and 55,953.97

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Solution

The fourth proportional to 86,921.89, 130,382.84 and 55,953.97 is: 83,930.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,921.89 : 130,382.84 = 55,953.97 : x
  2. Step 2: Convert to fraction form
    86,921.89/130,382.84 = 55,953.97/x
  3. Step 3: Cross multiply
    86,921.89x = 130,382.84 × 55,953.97
  4. Step 4: Simplify right side
    86,921.89x = 7,295,437,517.87
  5. Step 5: Solve for x
    x = 7,295,437,517.87/86,921.89
  6. Step 6: Final answer
    x = 83,930.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.