Home / 71,837.84-107,761.08-21,921.32

Finding the Fourth Proportional to 71,837.84, 107,761.08 and 21,921.32

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Solution

The fourth proportional to 71,837.84, 107,761.08 and 21,921.32 is: 32,883.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,837.84 : 107,761.08 = 21,921.32 : x
  2. Step 2: Convert to fraction form
    71,837.84/107,761.08 = 21,921.32/x
  3. Step 3: Cross multiply
    71,837.84x = 107,761.08 × 21,921.32
  4. Step 4: Simplify right side
    71,837.84x = 2,362,265,118.23
  5. Step 5: Solve for x
    x = 2,362,265,118.23/71,837.84
  6. Step 6: Final answer
    x = 32,883.30

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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.