Home / 87,825.81-131,755.73-28,645.59

Finding the Fourth Proportional to 87,825.81, 131,755.73 and 28,645.59

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Solution

The fourth proportional to 87,825.81, 131,755.73 and 28,645.59 is: 42,973.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,825.81 : 131,755.73 = 28,645.59 : x
  2. Step 2: Convert to fraction form
    87,825.81/131,755.73 = 28,645.59/x
  3. Step 3: Cross multiply
    87,825.81x = 131,755.73 × 28,645.59
  4. Step 4: Simplify right side
    87,825.81x = 3,774,220,478.50
  5. Step 5: Solve for x
    x = 3,774,220,478.50/87,825.81
  6. Step 6: Final answer
    x = 42,973.93

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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.