Home / 71,331.64-107,015.26-21,412.66

Finding the Fourth Proportional to 71,331.64, 107,015.26 and 21,412.66

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Solution

The fourth proportional to 71,331.64, 107,015.26 and 21,412.66 is: 32,124.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,331.64 : 107,015.26 = 21,412.66 : x
  2. Step 2: Convert to fraction form
    71,331.64/107,015.26 = 21,412.66/x
  3. Step 3: Cross multiply
    71,331.64x = 107,015.26 × 21,412.66
  4. Step 4: Simplify right side
    71,331.64x = 2,291,481,377.19
  5. Step 5: Solve for x
    x = 2,291,481,377.19/71,331.64
  6. Step 6: Final answer
    x = 32,124.33

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1.5x scale

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.