Home / 66,539.08-99,814.02-19,792

Finding the Fourth Proportional to 66,539.08, 99,814.02 and 19,792

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Solution

The fourth proportional to 66,539.08, 99,814.02 and 19,792 is: 29,689.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,539.08 : 99,814.02 = 19,792 : x
  2. Step 2: Convert to fraction form
    66,539.08/99,814.02 = 19,792/x
  3. Step 3: Cross multiply
    66,539.08x = 99,814.02 × 19,792
  4. Step 4: Simplify right side
    66,539.08x = 1,975,519,083.84
  5. Step 5: Solve for x
    x = 1,975,519,083.84/66,539.08
  6. Step 6: Final answer
    x = 29,689.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.