Home / 85,914.32-118,522.92-55,707.29

Finding the Fourth Proportional to 85,914.32, 118,522.92 and 55,707.29

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Solution

The fourth proportional to 85,914.32, 118,522.92 and 55,707.29 is: 76,850.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,914.32 : 118,522.92 = 55,707.29 : x
  2. Step 2: Convert to fraction form
    85,914.32/118,522.92 = 55,707.29/x
  3. Step 3: Cross multiply
    85,914.32x = 118,522.92 × 55,707.29
  4. Step 4: Simplify right side
    85,914.32x = 6,602,590,676.09
  5. Step 5: Solve for x
    x = 6,602,590,676.09/85,914.32
  6. Step 6: Final answer
    x = 76,850.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.