Home / 76,991.18-115,451.55-23,664.58

Finding the Fourth Proportional to 76,991.18, 115,451.55 and 23,664.58

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Solution

The fourth proportional to 76,991.18, 115,451.55 and 23,664.58 is: 35,486.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,991.18 : 115,451.55 = 23,664.58 : x
  2. Step 2: Convert to fraction form
    76,991.18/115,451.55 = 23,664.58/x
  3. Step 3: Cross multiply
    76,991.18x = 115,451.55 × 23,664.58
  4. Step 4: Simplify right side
    76,991.18x = 2,732,112,152.47
  5. Step 5: Solve for x
    x = 2,732,112,152.47/76,991.18
  6. Step 6: Final answer
    x = 35,486.04

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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.