Home / 87,255.36-130,683.78-52,122.96

Finding the Fourth Proportional to 87,255.36, 130,683.78 and 52,122.96

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Solution

The fourth proportional to 87,255.36, 130,683.78 and 52,122.96 is: 78,065.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,255.36 : 130,683.78 = 52,122.96 : x
  2. Step 2: Convert to fraction form
    87,255.36/130,683.78 = 52,122.96/x
  3. Step 3: Cross multiply
    87,255.36x = 130,683.78 × 52,122.96
  4. Step 4: Simplify right side
    87,255.36x = 6,811,625,437.59
  5. Step 5: Solve for x
    x = 6,811,625,437.59/87,255.36
  6. Step 6: Final answer
    x = 78,065.41

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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.