Home / 87,089.26-130,541.38-55,399.62

Finding the Fourth Proportional to 87,089.26, 130,541.38 and 55,399.62

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Solution

The fourth proportional to 87,089.26, 130,541.38 and 55,399.62 is: 83,040.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,089.26 : 130,541.38 = 55,399.62 : x
  2. Step 2: Convert to fraction form
    87,089.26/130,541.38 = 55,399.62/x
  3. Step 3: Cross multiply
    87,089.26x = 130,541.38 × 55,399.62
  4. Step 4: Simplify right side
    87,089.26x = 7,231,942,846.28
  5. Step 5: Solve for x
    x = 7,231,942,846.28/87,089.26
  6. Step 6: Final answer
    x = 83,040.58

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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.