Home / 66,133.81-91,250.45-39,285.37

Finding the Fourth Proportional to 66,133.81, 91,250.45 and 39,285.37

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Solution

The fourth proportional to 66,133.81, 91,250.45 and 39,285.37 is: 54,205.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,133.81 : 91,250.45 = 39,285.37 : x
  2. Step 2: Convert to fraction form
    66,133.81/91,250.45 = 39,285.37/x
  3. Step 3: Cross multiply
    66,133.81x = 91,250.45 × 39,285.37
  4. Step 4: Simplify right side
    66,133.81x = 3,584,807,234.66
  5. Step 5: Solve for x
    x = 3,584,807,234.66/66,133.81
  6. Step 6: Final answer
    x = 54,205.37

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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.