Home / 87,220.45-130,747.62-28,014.60

Finding the Fourth Proportional to 87,220.45, 130,747.62 and 28,014.60

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Solution

The fourth proportional to 87,220.45, 130,747.62 and 28,014.60 is: 41,995.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,220.45 : 130,747.62 = 28,014.60 : x
  2. Step 2: Convert to fraction form
    87,220.45/130,747.62 = 28,014.60/x
  3. Step 3: Cross multiply
    87,220.45x = 130,747.62 × 28,014.60
  4. Step 4: Simplify right side
    87,220.45x = 3,662,842,818.08
  5. Step 5: Solve for x
    x = 3,662,842,818.08/87,220.45
  6. Step 6: Final answer
    x = 41,995.23

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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.