Home / 87,817.70-131,726.01-28,653.41

Finding the Fourth Proportional to 87,817.70, 131,726.01 and 28,653.41

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Solution

The fourth proportional to 87,817.70, 131,726.01 and 28,653.41 is: 42,979.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,817.70 : 131,726.01 = 28,653.41 : x
  2. Step 2: Convert to fraction form
    87,817.70/131,726.01 = 28,653.41/x
  3. Step 3: Cross multiply
    87,817.70x = 131,726.01 × 28,653.41
  4. Step 4: Simplify right side
    87,817.70x = 3,774,399,372.19
  5. Step 5: Solve for x
    x = 3,774,399,372.19/87,817.70
  6. Step 6: Final answer
    x = 42,979.94

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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.