Home / 87,748.36-131,622.77-28,588.65

Finding the Fourth Proportional to 87,748.36, 131,622.77 and 28,588.65

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Solution

The fourth proportional to 87,748.36, 131,622.77 and 28,588.65 is: 42,883.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,748.36 : 131,622.77 = 28,588.65 : x
  2. Step 2: Convert to fraction form
    87,748.36/131,622.77 = 28,588.65/x
  3. Step 3: Cross multiply
    87,748.36x = 131,622.77 × 28,588.65
  4. Step 4: Simplify right side
    87,748.36x = 3,762,916,881.45
  5. Step 5: Solve for x
    x = 3,762,916,881.45/87,748.36
  6. Step 6: Final answer
    x = 42,883.04

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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.