Home / 86,057.05-128,898.64-41,590.55

Finding the Fourth Proportional to 86,057.05, 128,898.64 and 41,590.55

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Solution

The fourth proportional to 86,057.05, 128,898.64 and 41,590.55 is: 62,295.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,057.05 : 128,898.64 = 41,590.55 : x
  2. Step 2: Convert to fraction form
    86,057.05/128,898.64 = 41,590.55/x
  3. Step 3: Cross multiply
    86,057.05x = 128,898.64 × 41,590.55
  4. Step 4: Simplify right side
    86,057.05x = 5,360,964,981.03
  5. Step 5: Solve for x
    x = 5,360,964,981.03/86,057.05
  6. Step 6: Final answer
    x = 62,295.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.