Home / 57,979.69-86,972.15-15,858.83

Finding the Fourth Proportional to 57,979.69, 86,972.15 and 15,858.83

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Solution

The fourth proportional to 57,979.69, 86,972.15 and 15,858.83 is: 23,788.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,979.69 : 86,972.15 = 15,858.83 : x
  2. Step 2: Convert to fraction form
    57,979.69/86,972.15 = 15,858.83/x
  3. Step 3: Cross multiply
    57,979.69x = 86,972.15 × 15,858.83
  4. Step 4: Simplify right side
    57,979.69x = 1,379,276,798.66
  5. Step 5: Solve for x
    x = 1,379,276,798.66/57,979.69
  6. Step 6: Final answer
    x = 23,788.97

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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.