Home / 87,551.72-131,303.66-31,381.36

Finding the Fourth Proportional to 87,551.72, 131,303.66 and 31,381.36

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Solution

The fourth proportional to 87,551.72, 131,303.66 and 31,381.36 is: 47,063.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,551.72 : 131,303.66 = 31,381.36 : x
  2. Step 2: Convert to fraction form
    87,551.72/131,303.66 = 31,381.36/x
  3. Step 3: Cross multiply
    87,551.72x = 131,303.66 × 31,381.36
  4. Step 4: Simplify right side
    87,551.72x = 4,120,487,026.87
  5. Step 5: Solve for x
    x = 4,120,487,026.87/87,551.72
  6. Step 6: Final answer
    x = 47,063.46

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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.