Home / 87,446.31-131,137.28-31,271.19

Finding the Fourth Proportional to 87,446.31, 131,137.28 and 31,271.19

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Solution

The fourth proportional to 87,446.31, 131,137.28 and 31,271.19 is: 46,895.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,446.31 : 131,137.28 = 31,271.19 : x
  2. Step 2: Convert to fraction form
    87,446.31/131,137.28 = 31,271.19/x
  3. Step 3: Cross multiply
    87,446.31x = 131,137.28 × 31,271.19
  4. Step 4: Simplify right side
    87,446.31x = 4,100,818,798.96
  5. Step 5: Solve for x
    x = 4,100,818,798.96/87,446.31
  6. Step 6: Final answer
    x = 46,895.28

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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.