Home / 66,072.40-91,178.61-37,391.52

Finding the Fourth Proportional to 66,072.40, 91,178.61 and 37,391.52

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Solution

The fourth proportional to 66,072.40, 91,178.61 and 37,391.52 is: 51,599.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,072.40 : 91,178.61 = 37,391.52 : x
  2. Step 2: Convert to fraction form
    66,072.40/91,178.61 = 37,391.52/x
  3. Step 3: Cross multiply
    66,072.40x = 91,178.61 × 37,391.52
  4. Step 4: Simplify right side
    66,072.40x = 3,409,307,231.42
  5. Step 5: Solve for x
    x = 3,409,307,231.42/66,072.40
  6. Step 6: Final answer
    x = 51,599.57

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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.