Home / 98,917.78-136,513.24-55,882.35

Finding the Fourth Proportional to 98,917.78, 136,513.24 and 55,882.35

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Solution

The fourth proportional to 98,917.78, 136,513.24 and 55,882.35 is: 77,121.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,917.78 : 136,513.24 = 55,882.35 : x
  2. Step 2: Convert to fraction form
    98,917.78/136,513.24 = 55,882.35/x
  3. Step 3: Cross multiply
    98,917.78x = 136,513.24 × 55,882.35
  4. Step 4: Simplify right side
    98,917.78x = 7,628,679,695.34
  5. Step 5: Solve for x
    x = 7,628,679,695.34/98,917.78
  6. Step 6: Final answer
    x = 77,121.42

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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.