Home / 87,933.51-131,899.12-21,373.45

Finding the Fourth Proportional to 87,933.51, 131,899.12 and 21,373.45

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Solution

The fourth proportional to 87,933.51, 131,899.12 and 21,373.45 is: 32,059.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,933.51 : 131,899.12 = 21,373.45 : x
  2. Step 2: Convert to fraction form
    87,933.51/131,899.12 = 21,373.45/x
  3. Step 3: Cross multiply
    87,933.51x = 131,899.12 × 21,373.45
  4. Step 4: Simplify right side
    87,933.51x = 2,819,138,863.18
  5. Step 5: Solve for x
    x = 2,819,138,863.18/87,933.51
  6. Step 6: Final answer
    x = 32,059.89

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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.