Home / 84,245.72-116,231.06-55,579.62

Finding the Fourth Proportional to 84,245.72, 116,231.06 and 55,579.62

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Solution

The fourth proportional to 84,245.72, 116,231.06 and 55,579.62 is: 76,681.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,245.72 : 116,231.06 = 55,579.62 : x
  2. Step 2: Convert to fraction form
    84,245.72/116,231.06 = 55,579.62/x
  3. Step 3: Cross multiply
    84,245.72x = 116,231.06 × 55,579.62
  4. Step 4: Simplify right side
    84,245.72x = 6,460,078,147.00
  5. Step 5: Solve for x
    x = 6,460,078,147.00/84,245.72
  6. Step 6: Final answer
    x = 76,681.38

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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.