Home / 87,163.22-130,814.89-45,055.65

Finding the Fourth Proportional to 87,163.22, 130,814.89 and 45,055.65

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Solution

The fourth proportional to 87,163.22, 130,814.89 and 45,055.65 is: 67,619.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,163.22 : 130,814.89 = 45,055.65 : x
  2. Step 2: Convert to fraction form
    87,163.22/130,814.89 = 45,055.65/x
  3. Step 3: Cross multiply
    87,163.22x = 130,814.89 × 45,055.65
  4. Step 4: Simplify right side
    87,163.22x = 5,893,949,898.63
  5. Step 5: Solve for x
    x = 5,893,949,898.63/87,163.22
  6. Step 6: Final answer
    x = 67,619.69

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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.