Home / 87,774.20-131,667.51-43,389.03

Finding the Fourth Proportional to 87,774.20, 131,667.51 and 43,389.03

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Solution

The fourth proportional to 87,774.20, 131,667.51 and 43,389.03 is: 65,086.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,774.20 : 131,667.51 = 43,389.03 : x
  2. Step 2: Convert to fraction form
    87,774.20/131,667.51 = 43,389.03/x
  3. Step 3: Cross multiply
    87,774.20x = 131,667.51 × 43,389.03
  4. Step 4: Simplify right side
    87,774.20x = 5,712,925,541.42
  5. Step 5: Solve for x
    x = 5,712,925,541.42/87,774.20
  6. Step 6: Final answer
    x = 65,086.62

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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.