Home / 87,576.66-131,383.44-28,407.72

Finding the Fourth Proportional to 87,576.66, 131,383.44 and 28,407.72

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Solution

The fourth proportional to 87,576.66, 131,383.44 and 28,407.72 is: 42,617.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,576.66 : 131,383.44 = 28,407.72 : x
  2. Step 2: Convert to fraction form
    87,576.66/131,383.44 = 28,407.72/x
  3. Step 3: Cross multiply
    87,576.66x = 131,383.44 × 28,407.72
  4. Step 4: Simplify right side
    87,576.66x = 3,732,303,976.16
  5. Step 5: Solve for x
    x = 3,732,303,976.16/87,576.66
  6. Step 6: Final answer
    x = 42,617.56

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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.