Home / 87,019.08-130,586.94-55,876.20

Finding the Fourth Proportional to 87,019.08, 130,586.94 and 55,876.20

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Solution

The fourth proportional to 87,019.08, 130,586.94 and 55,876.20 is: 83,851.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,019.08 : 130,586.94 = 55,876.20 : x
  2. Step 2: Convert to fraction form
    87,019.08/130,586.94 = 55,876.20/x
  3. Step 3: Cross multiply
    87,019.08x = 130,586.94 × 55,876.20
  4. Step 4: Simplify right side
    87,019.08x = 7,296,701,976.83
  5. Step 5: Solve for x
    x = 7,296,701,976.83/87,019.08
  6. Step 6: Final answer
    x = 83,851.75

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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.