Home / 87,869.80-131,804.70-54,692.20

Finding the Fourth Proportional to 87,869.80, 131,804.70 and 54,692.20

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Solution

The fourth proportional to 87,869.80, 131,804.70 and 54,692.20 is: 82,038.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,869.80 : 131,804.70 = 54,692.20 : x
  2. Step 2: Convert to fraction form
    87,869.80/131,804.70 = 54,692.20/x
  3. Step 3: Cross multiply
    87,869.80x = 131,804.70 × 54,692.20
  4. Step 4: Simplify right side
    87,869.80x = 7,208,689,013.34
  5. Step 5: Solve for x
    x = 7,208,689,013.34/87,869.80
  6. Step 6: Final answer
    x = 82,038.30

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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.