Home / 57,933-86,932.35-31,278.63

Finding the Fourth Proportional to 57,933, 86,932.35 and 31,278.63

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Solution

The fourth proportional to 57,933, 86,932.35 and 31,278.63 is: 46,935.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,933 : 86,932.35 = 31,278.63 : x
  2. Step 2: Convert to fraction form
    57,933/86,932.35 = 31,278.63/x
  3. Step 3: Cross multiply
    57,933x = 86,932.35 × 31,278.63
  4. Step 4: Simplify right side
    57,933x = 2,719,124,810.68
  5. Step 5: Solve for x
    x = 2,719,124,810.68/57,933
  6. Step 6: Final answer
    x = 46,935.68

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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.