Home / 57,028.88-78,699.03-31,534.68

Finding the Fourth Proportional to 57,028.88, 78,699.03 and 31,534.68

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Solution

The fourth proportional to 57,028.88, 78,699.03 and 31,534.68 is: 43,517.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,028.88 : 78,699.03 = 31,534.68 : x
  2. Step 2: Convert to fraction form
    57,028.88/78,699.03 = 31,534.68/x
  3. Step 3: Cross multiply
    57,028.88x = 78,699.03 × 31,534.68
  4. Step 4: Simplify right side
    57,028.88x = 2,481,748,569.69
  5. Step 5: Solve for x
    x = 2,481,748,569.69/57,028.88
  6. Step 6: Final answer
    x = 43,517.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.