Home / 87,507.35-131,281.94-28,343.09

Finding the Fourth Proportional to 87,507.35, 131,281.94 and 28,343.09

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Solution

The fourth proportional to 87,507.35, 131,281.94 and 28,343.09 is: 42,521.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,507.35 : 131,281.94 = 28,343.09 : x
  2. Step 2: Convert to fraction form
    87,507.35/131,281.94 = 28,343.09/x
  3. Step 3: Cross multiply
    87,507.35x = 131,281.94 × 28,343.09
  4. Step 4: Simplify right side
    87,507.35x = 3,720,935,840.79
  5. Step 5: Solve for x
    x = 3,720,935,840.79/87,507.35
  6. Step 6: Final answer
    x = 42,521.41

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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.