Home / 43,082.28-64,624.50-11,917.80

Finding the Fourth Proportional to 43,082.28, 64,624.50 and 11,917.80

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Solution

The fourth proportional to 43,082.28, 64,624.50 and 11,917.80 is: 17,877.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,082.28 : 64,624.50 = 11,917.80 : x
  2. Step 2: Convert to fraction form
    43,082.28/64,624.50 = 11,917.80/x
  3. Step 3: Cross multiply
    43,082.28x = 64,624.50 × 11,917.80
  4. Step 4: Simplify right side
    43,082.28x = 770,181,866.10
  5. Step 5: Solve for x
    x = 770,181,866.10/43,082.28
  6. Step 6: Final answer
    x = 17,877.00

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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.