Home / 87,543.29-131,355.93-43,145.84

Finding the Fourth Proportional to 87,543.29, 131,355.93 and 43,145.84

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Solution

The fourth proportional to 87,543.29, 131,355.93 and 43,145.84 is: 64,738.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,543.29 : 131,355.93 = 43,145.84 : x
  2. Step 2: Convert to fraction form
    87,543.29/131,355.93 = 43,145.84/x
  3. Step 3: Cross multiply
    87,543.29x = 131,355.93 × 43,145.84
  4. Step 4: Simplify right side
    87,543.29x = 5,667,461,443.85
  5. Step 5: Solve for x
    x = 5,667,461,443.85/87,543.29
  6. Step 6: Final answer
    x = 64,738.96

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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.