Home / 85,076.68-117,431.64-49,275.48

Finding the Fourth Proportional to 85,076.68, 117,431.64 and 49,275.48

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Solution

The fourth proportional to 85,076.68, 117,431.64 and 49,275.48 is: 68,015.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,076.68 : 117,431.64 = 49,275.48 : x
  2. Step 2: Convert to fraction form
    85,076.68/117,431.64 = 49,275.48/x
  3. Step 3: Cross multiply
    85,076.68x = 117,431.64 × 49,275.48
  4. Step 4: Simplify right side
    85,076.68x = 5,786,500,428.19
  5. Step 5: Solve for x
    x = 5,786,500,428.19/85,076.68
  6. Step 6: Final answer
    x = 68,015.12

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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.