Home / 66,748.69-92,104.09-39,885.52

Finding the Fourth Proportional to 66,748.69, 92,104.09 and 39,885.52

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Solution

The fourth proportional to 66,748.69, 92,104.09 and 39,885.52 is: 55,036.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,748.69 : 92,104.09 = 39,885.52 : x
  2. Step 2: Convert to fraction form
    66,748.69/92,104.09 = 39,885.52/x
  3. Step 3: Cross multiply
    66,748.69x = 92,104.09 × 39,885.52
  4. Step 4: Simplify right side
    66,748.69x = 3,673,619,523.78
  5. Step 5: Solve for x
    x = 3,673,619,523.78/66,748.69
  6. Step 6: Final answer
    x = 55,036.58

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1.5x scale

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.