Home / 91,019.70-125,604.27-57,046.50

Finding the Fourth Proportional to 91,019.70, 125,604.27 and 57,046.50

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Solution

The fourth proportional to 91,019.70, 125,604.27 and 57,046.50 is: 78,722.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,019.70 : 125,604.27 = 57,046.50 : x
  2. Step 2: Convert to fraction form
    91,019.70/125,604.27 = 57,046.50/x
  3. Step 3: Cross multiply
    91,019.70x = 125,604.27 × 57,046.50
  4. Step 4: Simplify right side
    91,019.70x = 7,165,283,988.56
  5. Step 5: Solve for x
    x = 7,165,283,988.56/91,019.70
  6. Step 6: Final answer
    x = 78,722.34

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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.