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Finding the Fourth Proportional to 76,802.77, 115,256 and 26,883.28

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Solution

The fourth proportional to 76,802.77, 115,256 and 26,883.28 is: 40,343.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,802.77 : 115,256 = 26,883.28 : x
  2. Step 2: Convert to fraction form
    76,802.77/115,256 = 26,883.28/x
  3. Step 3: Cross multiply
    76,802.77x = 115,256 × 26,883.28
  4. Step 4: Simplify right side
    76,802.77x = 3,098,459,319.68
  5. Step 5: Solve for x
    x = 3,098,459,319.68/76,802.77
  6. Step 6: Final answer
    x = 40,343.07

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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.