Home / 66,083.13-99,140.10-19,339.65

Finding the Fourth Proportional to 66,083.13, 99,140.10 and 19,339.65

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Solution

The fourth proportional to 66,083.13, 99,140.10 and 19,339.65 is: 29,013.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,083.13 : 99,140.10 = 19,339.65 : x
  2. Step 2: Convert to fraction form
    66,083.13/99,140.10 = 19,339.65/x
  3. Step 3: Cross multiply
    66,083.13x = 99,140.10 × 19,339.65
  4. Step 4: Simplify right side
    66,083.13x = 1,917,334,834.97
  5. Step 5: Solve for x
    x = 1,917,334,834.97/66,083.13
  6. Step 6: Final answer
    x = 29,013.98

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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.