Home / 86,935.92-130,005.36-64,764.72

Finding the Fourth Proportional to 86,935.92, 130,005.36 and 64,764.72

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Solution

The fourth proportional to 86,935.92, 130,005.36 and 64,764.72 is: 96,850.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,935.92 : 130,005.36 = 64,764.72 : x
  2. Step 2: Convert to fraction form
    86,935.92/130,005.36 = 64,764.72/x
  3. Step 3: Cross multiply
    86,935.92x = 130,005.36 × 64,764.72
  4. Step 4: Simplify right side
    86,935.92x = 8,419,760,738.90
  5. Step 5: Solve for x
    x = 8,419,760,738.90/86,935.92
  6. Step 6: Final answer
    x = 96,850.19

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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.