Home / 98,921.92-136,512.38-53,599.89

Finding the Fourth Proportional to 98,921.92, 136,512.38 and 53,599.89

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Solution

The fourth proportional to 98,921.92, 136,512.38 and 53,599.89 is: 73,967.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,921.92 : 136,512.38 = 53,599.89 : x
  2. Step 2: Convert to fraction form
    98,921.92/136,512.38 = 53,599.89/x
  3. Step 3: Cross multiply
    98,921.92x = 136,512.38 × 53,599.89
  4. Step 4: Simplify right side
    98,921.92x = 7,317,048,283.64
  5. Step 5: Solve for x
    x = 7,317,048,283.64/98,921.92
  6. Step 6: Final answer
    x = 73,967.92

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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.