Home / 84,639.09-116,855.10-54,476.85

Finding the Fourth Proportional to 84,639.09, 116,855.10 and 54,476.85

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Solution

The fourth proportional to 84,639.09, 116,855.10 and 54,476.85 is: 75,212.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,639.09 : 116,855.10 = 54,476.85 : x
  2. Step 2: Convert to fraction form
    84,639.09/116,855.10 = 54,476.85/x
  3. Step 3: Cross multiply
    84,639.09x = 116,855.10 × 54,476.85
  4. Step 4: Simplify right side
    84,639.09x = 6,365,897,754.44
  5. Step 5: Solve for x
    x = 6,365,897,754.44/84,639.09
  6. Step 6: Final answer
    x = 75,212.27

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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.