Home / 87,250.37-120,402.32-53,315.64

Finding the Fourth Proportional to 87,250.37, 120,402.32 and 53,315.64

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Solution

The fourth proportional to 87,250.37, 120,402.32 and 53,315.64 is: 73,573.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,250.37 : 120,402.32 = 53,315.64 : x
  2. Step 2: Convert to fraction form
    87,250.37/120,402.32 = 53,315.64/x
  3. Step 3: Cross multiply
    87,250.37x = 120,402.32 × 53,315.64
  4. Step 4: Simplify right side
    87,250.37x = 6,419,327,270.19
  5. Step 5: Solve for x
    x = 6,419,327,270.19/87,250.37
  6. Step 6: Final answer
    x = 73,573.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.