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Finding the Fourth Proportional to 83,895.36, 115,525.80 and 82,032.72

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Solution

The fourth proportional to 83,895.36, 115,525.80 and 82,032.72 is: 112,960.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,895.36 : 115,525.80 = 82,032.72 : x
  2. Step 2: Convert to fraction form
    83,895.36/115,525.80 = 82,032.72/x
  3. Step 3: Cross multiply
    83,895.36x = 115,525.80 × 82,032.72
  4. Step 4: Simplify right side
    83,895.36x = 9,476,895,604.18
  5. Step 5: Solve for x
    x = 9,476,895,604.18/83,895.36
  6. Step 6: Final answer
    x = 112,960.90

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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.