Home / 87,427.84-131,169.30-31,266.58

Finding the Fourth Proportional to 87,427.84, 131,169.30 and 31,266.58

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Solution

The fourth proportional to 87,427.84, 131,169.30 and 31,266.58 is: 46,909.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,427.84 : 131,169.30 = 31,266.58 : x
  2. Step 2: Convert to fraction form
    87,427.84/131,169.30 = 31,266.58/x
  3. Step 3: Cross multiply
    87,427.84x = 131,169.30 × 31,266.58
  4. Step 4: Simplify right side
    87,427.84x = 4,101,215,411.99
  5. Step 5: Solve for x
    x = 4,101,215,411.99/87,427.84
  6. Step 6: Final answer
    x = 46,909.72

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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.