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Finding the Fourth Proportional to 85,082.88, 117,414.37 and 47,356.32

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Solution

The fourth proportional to 85,082.88, 117,414.37 and 47,356.32 is: 65,351.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,082.88 : 117,414.37 = 47,356.32 : x
  2. Step 2: Convert to fraction form
    85,082.88/117,414.37 = 47,356.32/x
  3. Step 3: Cross multiply
    85,082.88x = 117,414.37 × 47,356.32
  4. Step 4: Simplify right side
    85,082.88x = 5,560,312,478.32
  5. Step 5: Solve for x
    x = 5,560,312,478.32/85,082.88
  6. Step 6: Final answer
    x = 65,351.72

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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.