Home / 87,064.43-130,645.86-37,139.81

Finding the Fourth Proportional to 87,064.43, 130,645.86 and 37,139.81

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Solution

The fourth proportional to 87,064.43, 130,645.86 and 37,139.81 is: 55,730.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,064.43 : 130,645.86 = 37,139.81 : x
  2. Step 2: Convert to fraction form
    87,064.43/130,645.86 = 37,139.81/x
  3. Step 3: Cross multiply
    87,064.43x = 130,645.86 × 37,139.81
  4. Step 4: Simplify right side
    87,064.43x = 4,852,162,231.99
  5. Step 5: Solve for x
    x = 4,852,162,231.99/87,064.43
  6. Step 6: Final answer
    x = 55,730.71

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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.