Home / 77,579.65-116,378.59-27,666.84

Finding the Fourth Proportional to 77,579.65, 116,378.59 and 27,666.84

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Solution

The fourth proportional to 77,579.65, 116,378.59 and 27,666.84 is: 41,503.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,579.65 : 116,378.59 = 27,666.84 : x
  2. Step 2: Convert to fraction form
    77,579.65/116,378.59 = 27,666.84/x
  3. Step 3: Cross multiply
    77,579.65x = 116,378.59 × 27,666.84
  4. Step 4: Simplify right side
    77,579.65x = 3,219,827,759.79
  5. Step 5: Solve for x
    x = 3,219,827,759.79/77,579.65
  6. Step 6: Final answer
    x = 41,503.51

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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.