Home / 84,080.50-115,965.45-53,868.62

Finding the Fourth Proportional to 84,080.50, 115,965.45 and 53,868.62

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Solution

The fourth proportional to 84,080.50, 115,965.45 and 53,868.62 is: 74,296.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,080.50 : 115,965.45 = 53,868.62 : x
  2. Step 2: Convert to fraction form
    84,080.50/115,965.45 = 53,868.62/x
  3. Step 3: Cross multiply
    84,080.50x = 115,965.45 × 53,868.62
  4. Step 4: Simplify right side
    84,080.50x = 6,246,899,049.09
  5. Step 5: Solve for x
    x = 6,246,899,049.09/84,080.50
  6. Step 6: Final answer
    x = 74,296.65

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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.