Home / 98,829.72-136,383.66-54,117.72

Finding the Fourth Proportional to 98,829.72, 136,383.66 and 54,117.72

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Solution

The fourth proportional to 98,829.72, 136,383.66 and 54,117.72 is: 74,681.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,829.72 : 136,383.66 = 54,117.72 : x
  2. Step 2: Convert to fraction form
    98,829.72/136,383.66 = 54,117.72/x
  3. Step 3: Cross multiply
    98,829.72x = 136,383.66 × 54,117.72
  4. Step 4: Simplify right side
    98,829.72x = 7,380,772,724.46
  5. Step 5: Solve for x
    x = 7,380,772,724.46/98,829.72
  6. Step 6: Final answer
    x = 74,681.71

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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.