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Finding the Fourth Proportional to 66,017.58, 99,032.22 and 18,633

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Solution

The fourth proportional to 66,017.58, 99,032.22 and 18,633 is: 27,951.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,017.58 : 99,032.22 = 18,633 : x
  2. Step 2: Convert to fraction form
    66,017.58/99,032.22 = 18,633/x
  3. Step 3: Cross multiply
    66,017.58x = 99,032.22 × 18,633
  4. Step 4: Simplify right side
    66,017.58x = 1,845,267,355.26
  5. Step 5: Solve for x
    x = 1,845,267,355.26/66,017.58
  6. Step 6: Final answer
    x = 27,951.15

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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.