Home / 79,883.10-119,824.65-54,999.90

Finding the Fourth Proportional to 79,883.10, 119,824.65 and 54,999.90

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Solution

The fourth proportional to 79,883.10, 119,824.65 and 54,999.90 is: 82,499.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,883.10 : 119,824.65 = 54,999.90 : x
  2. Step 2: Convert to fraction form
    79,883.10/119,824.65 = 54,999.90/x
  3. Step 3: Cross multiply
    79,883.10x = 119,824.65 × 54,999.90
  4. Step 4: Simplify right side
    79,883.10x = 6,590,343,767.54
  5. Step 5: Solve for x
    x = 6,590,343,767.54/79,883.10
  6. Step 6: Final answer
    x = 82,499.85

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.