Home / 87,059.50-130,589.24-57,470.40

Finding the Fourth Proportional to 87,059.50, 130,589.24 and 57,470.40

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Solution

The fourth proportional to 87,059.50, 130,589.24 and 57,470.40 is: 86,205.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,059.50 : 130,589.24 = 57,470.40 : x
  2. Step 2: Convert to fraction form
    87,059.50/130,589.24 = 57,470.40/x
  3. Step 3: Cross multiply
    87,059.50x = 130,589.24 × 57,470.40
  4. Step 4: Simplify right side
    87,059.50x = 7,505,015,571.14
  5. Step 5: Solve for x
    x = 7,505,015,571.14/87,059.50
  6. Step 6: Final answer
    x = 86,205.59

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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.