Home / 90,610.26-135,896.85-34,430.69

Finding the Fourth Proportional to 90,610.26, 135,896.85 and 34,430.69

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Solution

The fourth proportional to 90,610.26, 135,896.85 and 34,430.69 is: 51,638.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,610.26 : 135,896.85 = 34,430.69 : x
  2. Step 2: Convert to fraction form
    90,610.26/135,896.85 = 34,430.69/x
  3. Step 3: Cross multiply
    90,610.26x = 135,896.85 × 34,430.69
  4. Step 4: Simplify right side
    90,610.26x = 4,679,021,634.84
  5. Step 5: Solve for x
    x = 4,679,021,634.84/90,610.26
  6. Step 6: Final answer
    x = 51,638.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.