Home / 87,649.61-120,956.40-47,363.36

Finding the Fourth Proportional to 87,649.61, 120,956.40 and 47,363.36

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Solution

The fourth proportional to 87,649.61, 120,956.40 and 47,363.36 is: 65,361.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,649.61 : 120,956.40 = 47,363.36 : x
  2. Step 2: Convert to fraction form
    87,649.61/120,956.40 = 47,363.36/x
  3. Step 3: Cross multiply
    87,649.61x = 120,956.40 × 47,363.36
  4. Step 4: Simplify right side
    87,649.61x = 5,728,900,912.72
  5. Step 5: Solve for x
    x = 5,728,900,912.72/87,649.61
  6. Step 6: Final answer
    x = 65,361.40

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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.