Home / 71,799.23-107,714.39-21,878.02

Finding the Fourth Proportional to 71,799.23, 107,714.39 and 21,878.02

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Solution

The fourth proportional to 71,799.23, 107,714.39 and 21,878.02 is: 32,821.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,799.23 : 107,714.39 = 21,878.02 : x
  2. Step 2: Convert to fraction form
    71,799.23/107,714.39 = 21,878.02/x
  3. Step 3: Cross multiply
    71,799.23x = 107,714.39 × 21,878.02
  4. Step 4: Simplify right side
    71,799.23x = 2,356,577,578.71
  5. Step 5: Solve for x
    x = 2,356,577,578.71/71,799.23
  6. Step 6: Final answer
    x = 32,821.77

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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.