Home / 84,766.82-116,711.49-71,992.58

Finding the Fourth Proportional to 84,766.82, 116,711.49 and 71,992.58

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Solution

The fourth proportional to 84,766.82, 116,711.49 and 71,992.58 is: 99,123.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,766.82 : 116,711.49 = 71,992.58 : x
  2. Step 2: Convert to fraction form
    84,766.82/116,711.49 = 71,992.58/x
  3. Step 3: Cross multiply
    84,766.82x = 116,711.49 × 71,992.58
  4. Step 4: Simplify right side
    84,766.82x = 8,402,361,280.74
  5. Step 5: Solve for x
    x = 8,402,361,280.74/84,766.82
  6. Step 6: Final answer
    x = 99,123.23

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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.