Home / 87,330.54-130,995.78-28,166.19

Finding the Fourth Proportional to 87,330.54, 130,995.78 and 28,166.19

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Solution

The fourth proportional to 87,330.54, 130,995.78 and 28,166.19 is: 42,249.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,330.54 : 130,995.78 = 28,166.19 : x
  2. Step 2: Convert to fraction form
    87,330.54/130,995.78 = 28,166.19/x
  3. Step 3: Cross multiply
    87,330.54x = 130,995.78 × 28,166.19
  4. Step 4: Simplify right side
    87,330.54x = 3,689,652,028.68
  5. Step 5: Solve for x
    x = 3,689,652,028.68/87,330.54
  6. Step 6: Final answer
    x = 42,249.28

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Double scale
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Similar ratio
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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.