Home / 66,805.12-92,127.44-39,943.27

Finding the Fourth Proportional to 66,805.12, 92,127.44 and 39,943.27

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Solution

The fourth proportional to 66,805.12, 92,127.44 and 39,943.27 is: 55,083.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,805.12 : 92,127.44 = 39,943.27 : x
  2. Step 2: Convert to fraction form
    66,805.12/92,127.44 = 39,943.27/x
  3. Step 3: Cross multiply
    66,805.12x = 92,127.44 × 39,943.27
  4. Step 4: Simplify right side
    66,805.12x = 3,679,870,549.98
  5. Step 5: Solve for x
    x = 3,679,870,549.98/66,805.12
  6. Step 6: Final answer
    x = 55,083.66

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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.