Home / 72,566.76-108,850.68-19,979.13

Finding the Fourth Proportional to 72,566.76, 108,850.68 and 19,979.13

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Solution

The fourth proportional to 72,566.76, 108,850.68 and 19,979.13 is: 29,968.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,566.76 : 108,850.68 = 19,979.13 : x
  2. Step 2: Convert to fraction form
    72,566.76/108,850.68 = 19,979.13/x
  3. Step 3: Cross multiply
    72,566.76x = 108,850.68 × 19,979.13
  4. Step 4: Simplify right side
    72,566.76x = 2,174,741,886.31
  5. Step 5: Solve for x
    x = 2,174,741,886.31/72,566.76
  6. Step 6: Final answer
    x = 29,968.84

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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.