Home / 98,945.66-136,545.18-53,623.64

Finding the Fourth Proportional to 98,945.66, 136,545.18 and 53,623.64

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Solution

The fourth proportional to 98,945.66, 136,545.18 and 53,623.64 is: 74,000.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,945.66 : 136,545.18 = 53,623.64 : x
  2. Step 2: Convert to fraction form
    98,945.66/136,545.18 = 53,623.64/x
  3. Step 3: Cross multiply
    98,945.66x = 136,545.18 × 53,623.64
  4. Step 4: Simplify right side
    98,945.66x = 7,322,049,576.06
  5. Step 5: Solve for x
    x = 7,322,049,576.06/98,945.66
  6. Step 6: Final answer
    x = 74,000.71

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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.