Home / 87,323.48-131,010.78-28,157.96

Finding the Fourth Proportional to 87,323.48, 131,010.78 and 28,157.96

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Solution

The fourth proportional to 87,323.48, 131,010.78 and 28,157.96 is: 42,245.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,323.48 : 131,010.78 = 28,157.96 : x
  2. Step 2: Convert to fraction form
    87,323.48/131,010.78 = 28,157.96/x
  3. Step 3: Cross multiply
    87,323.48x = 131,010.78 × 28,157.96
  4. Step 4: Simplify right side
    87,323.48x = 3,688,996,302.81
  5. Step 5: Solve for x
    x = 3,688,996,302.81/87,323.48
  6. Step 6: Final answer
    x = 42,245.18

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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.