Home / 87,676.81-131,530.71-28,502.06

Finding the Fourth Proportional to 87,676.81, 131,530.71 and 28,502.06

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Solution

The fourth proportional to 87,676.81, 131,530.71 and 28,502.06 is: 42,758.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,676.81 : 131,530.71 = 28,502.06 : x
  2. Step 2: Convert to fraction form
    87,676.81/131,530.71 = 28,502.06/x
  3. Step 3: Cross multiply
    87,676.81x = 131,530.71 × 28,502.06
  4. Step 4: Simplify right side
    87,676.81x = 3,748,896,188.26
  5. Step 5: Solve for x
    x = 3,748,896,188.26/87,676.81
  6. Step 6: Final answer
    x = 42,758.13

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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.