Home / 98,728.37-136,201.86-57,871.79

Finding the Fourth Proportional to 98,728.37, 136,201.86 and 57,871.79

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Solution

The fourth proportional to 98,728.37, 136,201.86 and 57,871.79 is: 79,837.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,728.37 : 136,201.86 = 57,871.79 : x
  2. Step 2: Convert to fraction form
    98,728.37/136,201.86 = 57,871.79/x
  3. Step 3: Cross multiply
    98,728.37x = 136,201.86 × 57,871.79
  4. Step 4: Simplify right side
    98,728.37x = 7,882,244,758.52
  5. Step 5: Solve for x
    x = 7,882,244,758.52/98,728.37
  6. Step 6: Final answer
    x = 79,837.69

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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.