Home / 87,057.17-130,410.79-45,416.69

Finding the Fourth Proportional to 87,057.17, 130,410.79 and 45,416.69

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Solution

The fourth proportional to 87,057.17, 130,410.79 and 45,416.69 is: 68,033.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,057.17 : 130,410.79 = 45,416.69 : x
  2. Step 2: Convert to fraction form
    87,057.17/130,410.79 = 45,416.69/x
  3. Step 3: Cross multiply
    87,057.17x = 130,410.79 × 45,416.69
  4. Step 4: Simplify right side
    87,057.17x = 5,922,826,422.09
  5. Step 5: Solve for x
    x = 5,922,826,422.09/87,057.17
  6. Step 6: Final answer
    x = 68,033.76

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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.