Home / 83,455.73-115,166.49-48,999.89

Finding the Fourth Proportional to 83,455.73, 115,166.49 and 48,999.89

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Solution

The fourth proportional to 83,455.73, 115,166.49 and 48,999.89 is: 67,618.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,455.73 : 115,166.49 = 48,999.89 : x
  2. Step 2: Convert to fraction form
    83,455.73/115,166.49 = 48,999.89/x
  3. Step 3: Cross multiply
    83,455.73x = 115,166.49 × 48,999.89
  4. Step 4: Simplify right side
    83,455.73x = 5,643,144,765.85
  5. Step 5: Solve for x
    x = 5,643,144,765.85/83,455.73
  6. Step 6: Final answer
    x = 67,618.42

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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.