Home / 87,402.96-131,090.32-28,238.92

Finding the Fourth Proportional to 87,402.96, 131,090.32 and 28,238.92

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Solution

The fourth proportional to 87,402.96, 131,090.32 and 28,238.92 is: 42,353.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,402.96 : 131,090.32 = 28,238.92 : x
  2. Step 2: Convert to fraction form
    87,402.96/131,090.32 = 28,238.92/x
  3. Step 3: Cross multiply
    87,402.96x = 131,090.32 × 28,238.92
  4. Step 4: Simplify right side
    87,402.96x = 3,701,849,059.25
  5. Step 5: Solve for x
    x = 3,701,849,059.25/87,402.96
  6. Step 6: Final answer
    x = 42,353.82

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1.5x scale

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.