Home / 87,967.10-131,950.65-21,406.70

Finding the Fourth Proportional to 87,967.10, 131,950.65 and 21,406.70

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Solution

The fourth proportional to 87,967.10, 131,950.65 and 21,406.70 is: 32,110.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,967.10 : 131,950.65 = 21,406.70 : x
  2. Step 2: Convert to fraction form
    87,967.10/131,950.65 = 21,406.70/x
  3. Step 3: Cross multiply
    87,967.10x = 131,950.65 × 21,406.70
  4. Step 4: Simplify right side
    87,967.10x = 2,824,627,979.36
  5. Step 5: Solve for x
    x = 2,824,627,979.36/87,967.10
  6. Step 6: Final answer
    x = 32,110.05

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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.