Home / 85,390.83-117,837.45-49,579.92

Finding the Fourth Proportional to 85,390.83, 117,837.45 and 49,579.92

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Solution

The fourth proportional to 85,390.83, 117,837.45 and 49,579.92 is: 68,419.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,390.83 : 117,837.45 = 49,579.92 : x
  2. Step 2: Convert to fraction form
    85,390.83/117,837.45 = 49,579.92/x
  3. Step 3: Cross multiply
    85,390.83x = 117,837.45 × 49,579.92
  4. Step 4: Simplify right side
    85,390.83x = 5,842,371,344.00
  5. Step 5: Solve for x
    x = 5,842,371,344.00/85,390.83
  6. Step 6: Final answer
    x = 68,419.19

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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.