Home / 87,592.16-131,328.30-31,431.01

Finding the Fourth Proportional to 87,592.16, 131,328.30 and 31,431.01

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Solution

The fourth proportional to 87,592.16, 131,328.30 and 31,431.01 is: 47,125.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,592.16 : 131,328.30 = 31,431.01 : x
  2. Step 2: Convert to fraction form
    87,592.16/131,328.30 = 31,431.01/x
  3. Step 3: Cross multiply
    87,592.16x = 131,328.30 × 31,431.01
  4. Step 4: Simplify right side
    87,592.16x = 4,127,781,110.58
  5. Step 5: Solve for x
    x = 4,127,781,110.58/87,592.16
  6. Step 6: Final answer
    x = 47,125.01

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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.