Home / 85,405.17-117,850.17-49,588.18

Finding the Fourth Proportional to 85,405.17, 117,850.17 and 49,588.18

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Solution

The fourth proportional to 85,405.17, 117,850.17 and 49,588.18 is: 68,426.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,405.17 : 117,850.17 = 49,588.18 : x
  2. Step 2: Convert to fraction form
    85,405.17/117,850.17 = 49,588.18/x
  3. Step 3: Cross multiply
    85,405.17x = 117,850.17 × 49,588.18
  4. Step 4: Simplify right side
    85,405.17x = 5,843,975,442.99
  5. Step 5: Solve for x
    x = 5,843,975,442.99/85,405.17
  6. Step 6: Final answer
    x = 68,426.48

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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.