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Finding the Fourth Proportional to 81,230.52, 112,082.22 and 47,242.92

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Solution

The fourth proportional to 81,230.52, 112,082.22 and 47,242.92 is: 65,185.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,230.52 : 112,082.22 = 47,242.92 : x
  2. Step 2: Convert to fraction form
    81,230.52/112,082.22 = 47,242.92/x
  3. Step 3: Cross multiply
    81,230.52x = 112,082.22 × 47,242.92
  4. Step 4: Simplify right side
    81,230.52x = 5,295,091,352.88
  5. Step 5: Solve for x
    x = 5,295,091,352.88/81,230.52
  6. Step 6: Final answer
    x = 65,185.98

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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.