Home / 85,430.12-117,884.84-49,627.71

Finding the Fourth Proportional to 85,430.12, 117,884.84 and 49,627.71

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Solution

The fourth proportional to 85,430.12, 117,884.84 and 49,627.71 is: 68,481.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,430.12 : 117,884.84 = 49,627.71 : x
  2. Step 2: Convert to fraction form
    85,430.12/117,884.84 = 49,627.71/x
  3. Step 3: Cross multiply
    85,430.12x = 117,884.84 × 49,627.71
  4. Step 4: Simplify right side
    85,430.12x = 5,850,354,404.78
  5. Step 5: Solve for x
    x = 5,850,354,404.78/85,430.12
  6. Step 6: Final answer
    x = 68,481.17

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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.