Home / 77,092.40-115,646.31-20,933.43

Finding the Fourth Proportional to 77,092.40, 115,646.31 and 20,933.43

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Solution

The fourth proportional to 77,092.40, 115,646.31 and 20,933.43 is: 31,402.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,092.40 : 115,646.31 = 20,933.43 : x
  2. Step 2: Convert to fraction form
    77,092.40/115,646.31 = 20,933.43/x
  3. Step 3: Cross multiply
    77,092.40x = 115,646.31 × 20,933.43
  4. Step 4: Simplify right side
    77,092.40x = 2,420,873,935.14
  5. Step 5: Solve for x
    x = 2,420,873,935.14/77,092.40
  6. Step 6: Final answer
    x = 31,402.24

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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.