Home / 87,513.90-120,770.72-51,703.83

Finding the Fourth Proportional to 87,513.90, 120,770.72 and 51,703.83

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Solution

The fourth proportional to 87,513.90, 120,770.72 and 51,703.83 is: 71,352.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,513.90 : 120,770.72 = 51,703.83 : x
  2. Step 2: Convert to fraction form
    87,513.90/120,770.72 = 51,703.83/x
  3. Step 3: Cross multiply
    87,513.90x = 120,770.72 × 51,703.83
  4. Step 4: Simplify right side
    87,513.90x = 6,244,308,905.12
  5. Step 5: Solve for x
    x = 6,244,308,905.12/87,513.90
  6. Step 6: Final answer
    x = 71,352.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.