Home / 87,426.42-120,437.73-69,515.70

Finding the Fourth Proportional to 87,426.42, 120,437.73 and 69,515.70

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Solution

The fourth proportional to 87,426.42, 120,437.73 and 69,515.70 is: 95,764.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,426.42 : 120,437.73 = 69,515.70 : x
  2. Step 2: Convert to fraction form
    87,426.42/120,437.73 = 69,515.70/x
  3. Step 3: Cross multiply
    87,426.42x = 120,437.73 × 69,515.70
  4. Step 4: Simplify right side
    87,426.42x = 8,372,313,107.36
  5. Step 5: Solve for x
    x = 8,372,313,107.36/87,426.42
  6. Step 6: Final answer
    x = 95,764.11

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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.