Home / 87,475.88-120,717.10-49,749.32

Finding the Fourth Proportional to 87,475.88, 120,717.10 and 49,749.32

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Solution

The fourth proportional to 87,475.88, 120,717.10 and 49,749.32 is: 68,654.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,475.88 : 120,717.10 = 49,749.32 : x
  2. Step 2: Convert to fraction form
    87,475.88/120,717.10 = 49,749.32/x
  3. Step 3: Cross multiply
    87,475.88x = 120,717.10 × 49,749.32
  4. Step 4: Simplify right side
    87,475.88x = 6,005,593,637.37
  5. Step 5: Solve for x
    x = 6,005,593,637.37/87,475.88
  6. Step 6: Final answer
    x = 68,654.28

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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.