Home / 57,979.29-86,979.32-29,891.81

Finding the Fourth Proportional to 57,979.29, 86,979.32 and 29,891.81

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Solution

The fourth proportional to 57,979.29, 86,979.32 and 29,891.81 is: 44,843.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,979.29 : 86,979.32 = 29,891.81 : x
  2. Step 2: Convert to fraction form
    57,979.29/86,979.32 = 29,891.81/x
  3. Step 3: Cross multiply
    57,979.29x = 86,979.32 × 29,891.81
  4. Step 4: Simplify right side
    57,979.29x = 2,599,968,835.11
  5. Step 5: Solve for x
    x = 2,599,968,835.11/57,979.29
  6. Step 6: Final answer
    x = 44,843.06

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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.