Home / 66,302.32-91,481.30-39,079.49

Finding the Fourth Proportional to 66,302.32, 91,481.30 and 39,079.49

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Solution

The fourth proportional to 66,302.32, 91,481.30 and 39,079.49 is: 53,920.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,302.32 : 91,481.30 = 39,079.49 : x
  2. Step 2: Convert to fraction form
    66,302.32/91,481.30 = 39,079.49/x
  3. Step 3: Cross multiply
    66,302.32x = 91,481.30 × 39,079.49
  4. Step 4: Simplify right side
    66,302.32x = 3,575,042,299.57
  5. Step 5: Solve for x
    x = 3,575,042,299.57/66,302.32
  6. Step 6: Final answer
    x = 53,920.32

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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.