Home / 87,179.41-130,756.69-28,007.43

Finding the Fourth Proportional to 87,179.41, 130,756.69 and 28,007.43

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Solution

The fourth proportional to 87,179.41, 130,756.69 and 28,007.43 is: 42,007.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,179.41 : 130,756.69 = 28,007.43 : x
  2. Step 2: Convert to fraction form
    87,179.41/130,756.69 = 28,007.43/x
  3. Step 3: Cross multiply
    87,179.41x = 130,756.69 × 28,007.43
  4. Step 4: Simplify right side
    87,179.41x = 3,662,158,842.21
  5. Step 5: Solve for x
    x = 3,662,158,842.21/87,179.41
  6. Step 6: Final answer
    x = 42,007.15

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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.