Home / 87,172.54-130,778.25-31,014.70

Finding the Fourth Proportional to 87,172.54, 130,778.25 and 31,014.70

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Solution

The fourth proportional to 87,172.54, 130,778.25 and 31,014.70 is: 46,528.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,172.54 : 130,778.25 = 31,014.70 : x
  2. Step 2: Convert to fraction form
    87,172.54/130,778.25 = 31,014.70/x
  3. Step 3: Cross multiply
    87,172.54x = 130,778.25 × 31,014.70
  4. Step 4: Simplify right side
    87,172.54x = 4,056,048,190.28
  5. Step 5: Solve for x
    x = 4,056,048,190.28/87,172.54
  6. Step 6: Final answer
    x = 46,528.97

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1.5x scale

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.