Home / 91,313.98-126,093.45-57,381.28

Finding the Fourth Proportional to 91,313.98, 126,093.45 and 57,381.28

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Solution

The fourth proportional to 91,313.98, 126,093.45 and 57,381.28 is: 79,236.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,313.98 : 126,093.45 = 57,381.28 : x
  2. Step 2: Convert to fraction form
    91,313.98/126,093.45 = 57,381.28/x
  3. Step 3: Cross multiply
    91,313.98x = 126,093.45 × 57,381.28
  4. Step 4: Simplify right side
    91,313.98x = 7,235,403,560.62
  5. Step 5: Solve for x
    x = 7,235,403,560.62/91,313.98
  6. Step 6: Final answer
    x = 79,236.54

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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.