Home / 85,631.10-118,196.19-49,837.02

Finding the Fourth Proportional to 85,631.10, 118,196.19 and 49,837.02

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Solution

The fourth proportional to 85,631.10, 118,196.19 and 49,837.02 is: 68,789.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,631.10 : 118,196.19 = 49,837.02 : x
  2. Step 2: Convert to fraction form
    85,631.10/118,196.19 = 49,837.02/x
  3. Step 3: Cross multiply
    85,631.10x = 118,196.19 × 49,837.02
  4. Step 4: Simplify right side
    85,631.10x = 5,890,545,884.95
  5. Step 5: Solve for x
    x = 5,890,545,884.95/85,631.10
  6. Step 6: Final answer
    x = 68,789.80

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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.