Home / 84,272.94-116,199.63-57,431.70

Finding the Fourth Proportional to 84,272.94, 116,199.63 and 57,431.70

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Solution

The fourth proportional to 84,272.94, 116,199.63 and 57,431.70 is: 79,189.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,272.94 : 116,199.63 = 57,431.70 : x
  2. Step 2: Convert to fraction form
    84,272.94/116,199.63 = 57,431.70/x
  3. Step 3: Cross multiply
    84,272.94x = 116,199.63 × 57,431.70
  4. Step 4: Simplify right side
    84,272.94x = 6,673,542,290.27
  5. Step 5: Solve for x
    x = 6,673,542,290.27/84,272.94
  6. Step 6: Final answer
    x = 79,189.62

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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.