Home / 66,537.03-99,821.92-19,789.91

Finding the Fourth Proportional to 66,537.03, 99,821.92 and 19,789.91

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Solution

The fourth proportional to 66,537.03, 99,821.92 and 19,789.91 is: 29,689.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,537.03 : 99,821.92 = 19,789.91 : x
  2. Step 2: Convert to fraction form
    66,537.03/99,821.92 = 19,789.91/x
  3. Step 3: Cross multiply
    66,537.03x = 99,821.92 × 19,789.91
  4. Step 4: Simplify right side
    66,537.03x = 1,975,466,812.83
  5. Step 5: Solve for x
    x = 1,975,466,812.83/66,537.03
  6. Step 6: Final answer
    x = 29,689.74

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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.