Home / 77,717.66-116,564.07-27,788.45

Finding the Fourth Proportional to 77,717.66, 116,564.07 and 27,788.45

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Solution

The fourth proportional to 77,717.66, 116,564.07 and 27,788.45 is: 41,678.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,717.66 : 116,564.07 = 27,788.45 : x
  2. Step 2: Convert to fraction form
    77,717.66/116,564.07 = 27,788.45/x
  3. Step 3: Cross multiply
    77,717.66x = 116,564.07 × 27,788.45
  4. Step 4: Simplify right side
    77,717.66x = 3,239,134,830.99
  5. Step 5: Solve for x
    x = 3,239,134,830.99/77,717.66
  6. Step 6: Final answer
    x = 41,678.23

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1.5x scale

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.