Home / 51,775.77-77,693.16-20,181.72

Finding the Fourth Proportional to 51,775.77, 77,693.16 and 20,181.72

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Solution

The fourth proportional to 51,775.77, 77,693.16 and 20,181.72 is: 30,284.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,775.77 : 77,693.16 = 20,181.72 : x
  2. Step 2: Convert to fraction form
    51,775.77/77,693.16 = 20,181.72/x
  3. Step 3: Cross multiply
    51,775.77x = 77,693.16 × 20,181.72
  4. Step 4: Simplify right side
    51,775.77x = 1,567,981,601.04
  5. Step 5: Solve for x
    x = 1,567,981,601.04/51,775.77
  6. Step 6: Final answer
    x = 30,284.08

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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.