Home / 66,725.04-92,078.48-39,861.52

Finding the Fourth Proportional to 66,725.04, 92,078.48 and 39,861.52

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Solution

The fourth proportional to 66,725.04, 92,078.48 and 39,861.52 is: 55,007.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,725.04 : 92,078.48 = 39,861.52 : x
  2. Step 2: Convert to fraction form
    66,725.04/92,078.48 = 39,861.52/x
  3. Step 3: Cross multiply
    66,725.04x = 92,078.48 × 39,861.52
  4. Step 4: Simplify right side
    66,725.04x = 3,670,388,172.09
  5. Step 5: Solve for x
    x = 3,670,388,172.09/66,725.04
  6. Step 6: Final answer
    x = 55,007.66

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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.