Home / 91,178.40-125,892.84-58,932.10

Finding the Fourth Proportional to 91,178.40, 125,892.84 and 58,932.10

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Solution

The fourth proportional to 91,178.40, 125,892.84 and 58,932.10 is: 81,369.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,178.40 : 125,892.84 = 58,932.10 : x
  2. Step 2: Convert to fraction form
    91,178.40/125,892.84 = 58,932.10/x
  3. Step 3: Cross multiply
    91,178.40x = 125,892.84 × 58,932.10
  4. Step 4: Simplify right side
    91,178.40x = 7,419,128,806.70
  5. Step 5: Solve for x
    x = 7,419,128,806.70/91,178.40
  6. Step 6: Final answer
    x = 81,369.37

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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.