Home / 85,107.02-117,429.89-49,294.90

Finding the Fourth Proportional to 85,107.02, 117,429.89 and 49,294.90

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Solution

The fourth proportional to 85,107.02, 117,429.89 and 49,294.90 is: 68,016.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,107.02 : 117,429.89 = 49,294.90 : x
  2. Step 2: Convert to fraction form
    85,107.02/117,429.89 = 49,294.90/x
  3. Step 3: Cross multiply
    85,107.02x = 117,429.89 × 49,294.90
  4. Step 4: Simplify right side
    85,107.02x = 5,788,694,097.41
  5. Step 5: Solve for x
    x = 5,788,694,097.41/85,107.02
  6. Step 6: Final answer
    x = 68,016.65

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1.5x scale

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.