Home / 85,031.31-117,329.94-49,214.33

Finding the Fourth Proportional to 85,031.31, 117,329.94 and 49,214.33

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Solution

The fourth proportional to 85,031.31, 117,329.94 and 49,214.33 is: 67,908.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,031.31 : 117,329.94 = 49,214.33 : x
  2. Step 2: Convert to fraction form
    85,031.31/117,329.94 = 49,214.33/x
  3. Step 3: Cross multiply
    85,031.31x = 117,329.94 × 49,214.33
  4. Step 4: Simplify right side
    85,031.31x = 5,774,313,799.39
  5. Step 5: Solve for x
    x = 5,774,313,799.39/85,031.31
  6. Step 6: Final answer
    x = 67,908.09

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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.