Home / 76,545.45-105,586.07-53,844.39

Finding the Fourth Proportional to 76,545.45, 105,586.07 and 53,844.39

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Solution

The fourth proportional to 76,545.45, 105,586.07 and 53,844.39 is: 74,272.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,545.45 : 105,586.07 = 53,844.39 : x
  2. Step 2: Convert to fraction form
    76,545.45/105,586.07 = 53,844.39/x
  3. Step 3: Cross multiply
    76,545.45x = 105,586.07 × 53,844.39
  4. Step 4: Simplify right side
    76,545.45x = 5,685,217,262.43
  5. Step 5: Solve for x
    x = 5,685,217,262.43/76,545.45
  6. Step 6: Final answer
    x = 74,272.44

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1.5x scale

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.