Home / 87,179.16-130,756.32-28,007.18

Finding the Fourth Proportional to 87,179.16, 130,756.32 and 28,007.18

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Solution

The fourth proportional to 87,179.16, 130,756.32 and 28,007.18 is: 42,006.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,179.16 : 130,756.32 = 28,007.18 : x
  2. Step 2: Convert to fraction form
    87,179.16/130,756.32 = 28,007.18/x
  3. Step 3: Cross multiply
    87,179.16x = 130,756.32 × 28,007.18
  4. Step 4: Simplify right side
    87,179.16x = 3,662,115,136.60
  5. Step 5: Solve for x
    x = 3,662,115,136.60/87,179.16
  6. Step 6: Final answer
    x = 42,006.77

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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.