Home / 85,455.43-117,932.99-51,474.57

Finding the Fourth Proportional to 85,455.43, 117,932.99 and 51,474.57

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Solution

The fourth proportional to 85,455.43, 117,932.99 and 51,474.57 is: 71,037.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,455.43 : 117,932.99 = 51,474.57 : x
  2. Step 2: Convert to fraction form
    85,455.43/117,932.99 = 51,474.57/x
  3. Step 3: Cross multiply
    85,455.43x = 117,932.99 × 51,474.57
  4. Step 4: Simplify right side
    85,455.43x = 6,070,549,949.06
  5. Step 5: Solve for x
    x = 6,070,549,949.06/85,455.43
  6. Step 6: Final answer
    x = 71,037.62

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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.