Home / 91,745.22-126,554.67-57,699.72

Finding the Fourth Proportional to 91,745.22, 126,554.67 and 57,699.72

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Solution

The fourth proportional to 91,745.22, 126,554.67 and 57,699.72 is: 79,591.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,745.22 : 126,554.67 = 57,699.72 : x
  2. Step 2: Convert to fraction form
    91,745.22/126,554.67 = 57,699.72/x
  3. Step 3: Cross multiply
    91,745.22x = 126,554.67 × 57,699.72
  4. Step 4: Simplify right side
    91,745.22x = 7,302,169,023.69
  5. Step 5: Solve for x
    x = 7,302,169,023.69/91,745.22
  6. Step 6: Final answer
    x = 79,591.82

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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.