Home / 85,388.13-117,893.75-55,246.41

Finding the Fourth Proportional to 85,388.13, 117,893.75 and 55,246.41

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Solution

The fourth proportional to 85,388.13, 117,893.75 and 55,246.41 is: 76,277.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,388.13 : 117,893.75 = 55,246.41 : x
  2. Step 2: Convert to fraction form
    85,388.13/117,893.75 = 55,246.41/x
  3. Step 3: Cross multiply
    85,388.13x = 117,893.75 × 55,246.41
  4. Step 4: Simplify right side
    85,388.13x = 6,513,206,172.71
  5. Step 5: Solve for x
    x = 6,513,206,172.71/85,388.13
  6. Step 6: Final answer
    x = 76,277.65

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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.