Home / 85,351.64-117,757.17-55,154.75

Finding the Fourth Proportional to 85,351.64, 117,757.17 and 55,154.75

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Solution

The fourth proportional to 85,351.64, 117,757.17 and 55,154.75 is: 76,095.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,351.64 : 117,757.17 = 55,154.75 : x
  2. Step 2: Convert to fraction form
    85,351.64/117,757.17 = 55,154.75/x
  3. Step 3: Cross multiply
    85,351.64x = 117,757.17 × 55,154.75
  4. Step 4: Simplify right side
    85,351.64x = 6,494,866,683.27
  5. Step 5: Solve for x
    x = 6,494,866,683.27/85,351.64
  6. Step 6: Final answer
    x = 76,095.40

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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.